Gaya APA

Mendelsohn, E. (1971). Journal of the History of Biology: Spring 1971: Volume 4, Number 2 . Cambridge, Massachusetts: The Belknap Press of Harvard University Press.

Gaya MLA

Mendelsohn, Everett. "Journal of the History of Biology: Spring 1971: Volume 4, Number 2". Cambridge, Massachusetts: The Belknap Press of Harvard University Press, 1971. Digital Journal.