APA استشهاد

Riser, N. W., & Morse, M. P. (1960). Biology of the turbellaria. Mc graw Hill book company.

استشهاد بنمط شيكاغو

Riser, Nathan W., و M Patricia Morse. Biology of the Turbellaria. New Delhi: Mc graw Hill book company, 1960.

MLA استشهاد

Riser, Nathan W., و M Patricia Morse. Biology of the Turbellaria. Mc graw Hill book company, 1960.