Citazione APA

Clarke, R. F. (1958). An ecological study of reptiles and amphibians in Osage County, Kansas. Graduate Division of the Kansas State Teachers College.

Stile di citazione Chicago

Clarke, Robert F. An Ecological Study of Reptiles and Amphibians in Osage County, Kansas. Emporia: Graduate Division of the Kansas State Teachers College, 1958.

Citazione MLA

Clarke, Robert F. An Ecological Study of Reptiles and Amphibians in Osage County, Kansas. Graduate Division of the Kansas State Teachers College, 1958.