APA استشهاد

Packard, A. S. (1987). Treatise on injurious and beneficial insects to crops (2.). Logos Press.

استشهاد بنمط شيكاغو

Packard, A S. Treatise on Injurious and Beneficial Insects to Crops. 2. New delhi: Logos Press, 1987.

MLA استشهاد

Packard, A S. Treatise on Injurious and Beneficial Insects to Crops. 2. Logos Press, 1987.