APA (7e ed.) Bronvermelding

International Geographical Congress Washington, D.C., International Geographical Union, & Moorman, M. A. (1952). The Status of geography in countries adhering to the international geographical union. [s.n.].

Chicago (17e ed.) Bronvermelding

International Geographical Congress Washington, D.C., International Geographical Union, en Mildred A. Moorman. The Status of Geography in Countries Adhering to the International Geographical Union. Washington, D.C: [s.n.], 1952.

MLA (9e ed.) Bronvermelding

International Geographical Congress Washington, D.C., et al. The Status of Geography in Countries Adhering to the International Geographical Union. [s.n.], 1952.