APA-Zitierstil (7. Ausg.)

Leen, N. (1973). And then there were none: America's vanishing wildlife. With commentary by Joseph A. Davis. Holt, Rinehart and Winston.

Chicago-Zitierstil (17. Ausg.)

Leen, Nina. And Then There Were None: America's Vanishing Wildlife. With Commentary by Joseph A. Davis. New York: Holt, Rinehart and Winston, 1973.

MLA-Zitierstil (9. Ausg.)

Leen, Nina. And Then There Were None: America's Vanishing Wildlife. With Commentary by Joseph A. Davis. Holt, Rinehart and Winston, 1973.