Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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