Cita APA

William Etkin, R. M. D. A biology of human concern. J.P. Lippincott.

Chicago Style (17th ed.) Citation

William Etkin, Robert M. Devlin. A Biology of Human Concern. J.P. Lippincott.

Cita MLA

William Etkin, Robert M. Devlin. A Biology of Human Concern. J.P. Lippincott.