APA-referens (7:e uppl.)

Otto, J. H., Towle, A., & Crider, E. (1965). Biology investigations: Laboratory manual to accompany Modern biology. Holt, Rinehart and Winston.

Chicago-referens (17:e uppl.)

Otto, James Howard, Albert Towle, och Elizabeth Crider. Biology Investigations: Laboratory Manual to Accompany Modern Biology. New York: Holt, Rinehart and Winston, 1965.

MLA-referens (8:e uppl.)

Otto, James Howard, et al. Biology Investigations: Laboratory Manual to Accompany Modern Biology. Holt, Rinehart and Winston, 1965.