Pitchard, P. C. H. (1989). The alligator snapping turtle: Biology and conservation. EEUU: Milwaukee Public Museum.
Chicago Style CitationPitchard, Peter Charles Howard. The Alligator Snapping Turtle: Biology and Conservation. EEUU: Milwaukee Public Museum, 1989.
MLA CitationPitchard, Peter Charles Howard. The Alligator Snapping Turtle: Biology and Conservation. EEUU: Milwaukee Public Museum, 1989.
Warning: These citations may not always be 100% accurate.