APA (7e ed.) Bronvermelding

Birchfield, M. E., & Coolman, J. (1982). The complete reference guide to United Nations sales publications, 1946-1978. UNIFO Publishers.

Chicago (17e ed.) Bronvermelding

Birchfield, Mary Eva, en Jacqueline Coolman. The Complete Reference Guide to United Nations Sales Publications, 1946-1978. Pleasantville, N.Y: UNIFO Publishers, 1982.

MLA (9e ed.) Bronvermelding

Birchfield, Mary Eva, en Jacqueline Coolman. The Complete Reference Guide to United Nations Sales Publications, 1946-1978. UNIFO Publishers, 1982.