APA استشهاد

Roberts, L. S. Foundations of parasitology (5th ed.). WCB.

استشهاد بنمط شيكاغو

Roberts, Larry S. Foundations of Parasitology. 5th ed. Dubuque: WCB.

MLA استشهاد

Roberts, Larry S. Foundations of Parasitology. 5th ed. WCB.