Clarke, R. F. (1958). An ecological study of reptiles and amphibians in Osage County, Kansas. Graduate Division of the Kansas State Teachers College.
Chicago-referens (17:e uppl.)Clarke, Robert F. An Ecological Study of Reptiles and Amphibians in Osage County, Kansas. Emporia: Graduate Division of the Kansas State Teachers College, 1958.
MLA-referens (8:e uppl.)Clarke, Robert F. An Ecological Study of Reptiles and Amphibians in Osage County, Kansas. Graduate Division of the Kansas State Teachers College, 1958.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.