APA (7th ed.) Citation

Unesco & Vanwijngaerden, F. L. J. (1978). Handbook on the international exchange of publications (4th ed.). Unesco.

Chicago Style (17th ed.) Citation

Unesco and F. L. J. Vanwijngaerden. Handbook on the International Exchange of Publications. 4th ed. Paris: Unesco, 1978.

MLA (8th ed.) Citation

Unesco and F. L. J. Vanwijngaerden. Handbook on the International Exchange of Publications. 4th ed. Unesco, 1978.