APA-viite (7. p.)

Harding, D. E., Volker, R. P., & Fagle, D. L. (1969). Creative biology teaching. The Iowa State University Press.

Chicago-viite (17. p.)

Harding, Delma E., Roger P. Volker, ja David L. Fagle. Creative Biology Teaching. Iowa, USA: The Iowa State University Press, 1969.

MLA-viite (9. p.)

Harding, Delma E., et al. Creative Biology Teaching. The Iowa State University Press, 1969.