Gibbons, W. (2013). Their blood runs cold: Adventures with reptiles and amphibians (13th anniversary ed.). University Alabama Press.
Citace podle Chicago (17th ed.)Gibbons, Whit. Their Blood Runs Cold: Adventures with Reptiles and Amphibians. 13th anniversary ed. Tuscaloosa: University Alabama Press, 2013.
Citace podle MLA (9th ed.)Gibbons, Whit. Their Blood Runs Cold: Adventures with Reptiles and Amphibians. 13th anniversary ed. University Alabama Press, 2013.
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