Citrus fruit insects in Mediterranean countries - Quayle, H. J. (Henry Josef) 1876 -1951 (U.S. Dept. of Agriculture, 1914)

Citrus fruits - Coit, J. Eliot, 1880 - (The Macmillan company, 1915)

Civic biology, a textbook of problems, local and national, that can be solved only by civic coöperation - Hodge, Clifton F. (Clifton Fremont), 1859 -1919 (Ginn, 1918)

Class book of economic entomology - Lochhead, W. (P. Blakiston's son & co, 1919)

Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada - Lochhead, W. (Blakiston, 1919)

Class book of economic entomology with special reference to the economic insects of the northern United States and Canada - Lochhead, W. (P. Blakiston's Son, 1919)

The Coccidae - MacGillivray, Alexander Dyer, 1868 -1924 (Scarab company, 1921)

The Coccidae of Ceylon - Green, Edward Ernest, 1861 -1949 (Dulau & Co., ltd, 1896)

The Coccidae of Ceylon - Green, Edward Ernest, 1861 -1949 (Dulau & Co., ltd, 1922)

The Coccidae, tables for the identification of the subfamilies and some of the more important genera and species, together with discussions of their anatomy and life history - MacGillivray, Alexander Dyer, 1868 -1924 (Scarab Company, 1921)

The Coccidae, tables for the identification of the subfamilies and some of the more important genera and species, together with discussions of their anatomy and life history - MacGillivray, Alexander Dyer, 1868 -1924 (Scarab, 1921)

Coccidologist's newsletter - Systematic Entomology Laboratory (U.S.) (ARS, Systematic Entomology Laboratory, 1973)

College zoology - Hegner, Robert William, 1880 -1942 (Macmillan, 1918)

Compte Rendu de la Association Française pour l'Avancement des Sciences - Association française pour l'avancement des sciences. (Secretariat de lʹAssociation, 1920)

Comptes rendus hebdomadaires des séances de l'Académie des sciences - Centre national de la recherche scientifique (France) (publiés avec le concours du Centre national de la recherche scientifique par MM. les secrétaires perpétuels, 1913)

Congrès international d'entomologie : [proceedings] (Hayez, 1910)

Congrès international d'entomologie : [proceedings] (Hayez, 1933)

Congrès international d'entomologie : [proceedings] (Hayez, 1938)

Congrès international d'entomologie : [proceedings] (Hayez, 1939)

Congrès international d'entomologie : [proceedings] (Hayez, 1952)

Congrès international d'entomologie : [proceedings] (Hayez, 1980)

Congrès international d'entomologie : [proceedings] (Hayez, 1984)

Congrès international d'entomologie : [proceedings] (Hayez, 1988)

Congrès international d'entomologie : [proceedings] (Hayez, 1992)

Congrès international d'entomologie : [proceedings] (Hayez, 2000)

A contribution to the knowledge of the Coccidae of southwestern United States - Ferris, Gordon Floyd, 1893 -1958 (The University, 1919)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1951)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1955)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1956)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1959)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1960)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1961)

Cooperative economic insect report - United States. Bureau of Entomology; Plant Quarantine. (Plant Protection and Quarantine Programs Animal and Plant Health Service, 1962)