APA (7th ed.) Citation
Wermuth, H., & Mertens, R. (1977). Testudines, crocodylia, rhynchocephalia. De Gruyter.
Chicago Style (17th ed.) Citation
Wermuth, Heinz, and Robert Mertens. Testudines, Crocodylia, Rhynchocephalia. Berlin, New York: De Gruyter, 1977.
MLA (9th ed.) Citation
Wermuth, Heinz, and Robert Mertens. Testudines, Crocodylia, Rhynchocephalia. De Gruyter, 1977.
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