Report upon United States Geographical surveys west of the one hundredth meridian - Geographical Surveys West of the 100th Meridian (U.S.) (G.P.O, 1875)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1859)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1858)

Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean - Baird, Spencer Fullerton, 1823 -1887 (A.O.P. Nicholson, Printer [etc.], 1853)

Reptiles and amphibians of southeastern national forests - United States. Forest Service. Southern Region. (U.S. Dept. of Agriculture, Forest Service, Southern Region, 1982)

The reptiles and batrachians of North America / by Samuel Garman - Garman, Samuel, 1843 -1927 (Yeoman Press, 1883)

The reptiles of the Pacific coast and Great Basin; an account of the species known to inhabit California and Oregon, Washington, Idaho and Nevada - Van Denburgh, John, 1872 -1924 (California Academy of Sciences, 1897)

The reptiles of the Pacific coast and great basin; an account of the species known to inhabit California, and Oregon, Washington, Idaho and Nevada - Van Denburgh, John, 1872 -1924 (California academy of sciences, 1897)

The reptiles of the Pacific coast and great basin; an account of the species known to inhabit California, and Oregon, Washington, Idaho and Nevada - Van Denburgh, John, 1872 -1924 (California Academy of Sciences, 1897)

The reptiles of western North America, an account of the species known to inhabit California and Oregon, Washington, Idaho, Utah, Nevada, Arizona, British Columbia, Sonora and Lower California - Van Denburgh, John, 1872 -1924 (California Academy of Sciences, 1922)