Dyfyniad APA

Gibbons, W. (2013). Their blood runs cold: Adventures with reptiles and amphibians (13th anniversary ed.). University Alabama Press.

Dyfyniad Arddull Chicago

Gibbons, Whit. Their Blood Runs Cold: Adventures with Reptiles and Amphibians. 13th anniversary ed. Tuscaloosa: University Alabama Press, 2013.

Dyfyniad MLA

Gibbons, Whit. Their Blood Runs Cold: Adventures with Reptiles and Amphibians. 13th anniversary ed. University Alabama Press, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.