APA

Pfankuchen L., . (1940). A documentary textbook in international law. New York: Farrar & Rinerhart.

Chicago

Pfankuchen Llewellyn, . 1940. A documentary textbook in international law. New York: Farrar & Rinerhart.

Harvard

Pfankuchen L., . (1940). A documentary textbook in international law. New York: Farrar & Rinerhart.

MLA

Pfankuchen Llewellyn, . A documentary textbook in international law. New York: Farrar & Rinerhart. 1940.