Citazione Stile APA (7a Edizione)

Petrunkevitch, A. (1916). Morphology of invertebrate types. The Macmillan Company.

Citazione stile Chigago Style (17a edizione)

Petrunkevitch, Alexander. Morphology of Invertebrate Types. New York: The Macmillan Company, 1916.

Citatione MLA (9a ed.)

Petrunkevitch, Alexander. Morphology of Invertebrate Types. The Macmillan Company, 1916.