APA (7. basım) Alıntı

Twentieth Century Fund & May, S. (1952). Costa Rica, a study in economic development. [s.n.

Chicago Style (17. basım) Atıf

Twentieth Century Fund ve Stacy May. Costa Rica, a Study in Economic Development. New York: [s.n, 1952.

MLA (9th ed.) Atıf

Twentieth Century Fund ve Stacy May. Costa Rica, a Study in Economic Development. [s.n, 1952.