Παραπομπή APA

Kruiff, P. (1926). Microbe Hunders. Pocket Books Inc.

Παραπομπή Chicago Style

Kruiff, Paulde. Microbe Hunders. New York: Pocket Books Inc, 1926.

Παραπομπή MLA

Kruiff, Paulde. Microbe Hunders. Pocket Books Inc, 1926.