Cita APA (7a ed.)

Gardner, R. A., Gardner, B. T., & Van Cantfort, T. E. (1989). Teaching sign language to chimpanzees. State University of New York Press.

Cita Chicago Style (17a ed.)

Gardner, R. Allen, Beatrix T. Gardner, y Thomas E. Van Cantfort. Teaching Sign Language to Chimpanzees. Albany: State University of New York Press, 1989.

Cita MLA (9a ed.)

Gardner, R. Allen, et al. Teaching Sign Language to Chimpanzees. State University of New York Press, 1989.