Rio Blanco Oil Shale Project. Tract C-a / [c]by Rio Blanco Oil Shale Project. no.8, Progress report - CDM/Limnetics. (Rio Blanco Oil Shale Project, 1974)

Rock River area assessment - Illinois. Dept. of Natural Resources. (Illinois Dept. of Natural Resources, 1996)

The ruffed grouse; life history, propagation, management - Bump, Gardiner, 1902 - (1947)

Russkoe entomologicheskoe obozrenie = Revue russe d'entomologie - Russkoe entomologicheskoe obshchestvo (Russkoe entomologicheskoe obshchestvo, 1904)

Ruwenzori expedition, 1934-5 ... - British Museum (Natural History) (Printed by order of the Trustees of the British Museum, 1939)

Ruwenzori Expedition 1952 - British Museum (Natural History) (British Museum, 1958)

Ruwenzori Expedition 1952 - British Museum (Natural History) (British Museum, 1959)

Sacramento River water pollution survey : Appendix D: Benthic biology - California. Department of Water Resources. (The Department, 1962)

Sage notes : Idaho Native Plant Society newsletter - Idaho Native Plant Society. (Idaho Native Plant Society, Pahove Chapter, 2011)

SCAMIT newsletter - Southern California Association of Marine Invertebrate Taxonomists. (SCAMIT, 2007)

Science - American Association for the Advancement of Science. ([s.n.], 1904)

The science of biology - Beaver, William C. (William Carl), 1896 - (C.V. Mosby Co, 1952)

Scopus - East Africa Natural History Society. (East Africa Natural History Society's Ornithological Sub-committee, 1987)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1962)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 1999)

Scottish birds - Scottish Ornithologists' Club (Scottish Ornithologists' Club, 2014)

Scottish Naturalist - Scottish Natural History Library. (Scottish Natural History Library, 1984)

Scottish Naturalist - Scottish Natural History Library. (Scottish Natural History Library, 1988)

The Scottish naturalist (T. Buncle & Co. [etc.], 1933)

The Scottish naturalist (T. Buncle & Co. [etc.], 1938)

Scottish Naturalist - Scottish Natural History Library. (Scottish Natural History Library, 1997)

The Scottish naturalist (T. Buncle & Co. [etc.], 1939)

The Scottish naturalist (T. Buncle & Co. [etc.], 1954)

The Scottish naturalist (T. Buncle & Co. [etc.], 1955)

Seasonal composition of invertebrates in several Oregon streams - Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1987)

Sediment bioassay research and development - Ontario. Environmental Research Program. (Environment Ontario, 1990)

Serket = Sarkat - El-Hennawy, Hisham Kamal El-Din 1955 - ([Hisham K. El-Hennawy], 2012)

sheng tai hua xue qian yan - kong chui hua lou yong gen (gao deng jiao yu chu ban she, 2010)

Shields River habitat and aquatic invertebrate assessment, September 2000 - Bollman, Wease. (Rhithron Biological Associates, 2001)

Small-scale suction dredging in Lolo Creek and Moose Creek, Clearwater and Idaho counties, Idaho : final environmental impact statement : [Clearwater National Forest, Lochsa and North Fork Ranger Districts] - United States. Department of Agriculture. (U.S. Forest Service, Clearwater National Forest, 2006)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1936)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1938)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1939)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1941)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1950)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1954)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1955)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1957)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1959)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1960)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1961)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1963)

Smithsonian year - Smithsonian Institution (Smithsonian Institution, 1971)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1985)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1986)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1989)

Smithsonian year ... supplement : chronology and appendices - Smithsonian Institution (Smithsonian Institution, 1991)

Some unusual natural areas in Illinois - Evers, Robert A. (Robert August), 1912 - (Illinois Natural History Survey, 1977)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2001)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2002)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2003)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2005)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2006)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2007)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2008)

Southeastern biology - Association of Southeastern Biologists. (Association of Southeastern Biologists, 2010)