APA استشهاد

Snodgrass, R. E. (1951). Comparative studies on the head of mandibulate arthropods.

استشهاد بنمط شيكاغو

Snodgrass, R E. Comparative Studies on the Head of Mandibulate Arthropods. Comstock Publishing Co, New York, 1951.

MLA استشهاد

Snodgrass, R E. Comparative Studies on the Head of Mandibulate Arthropods. 1951.