APA (7th ed.) Citation

Unesco, Unesco. General Information Programme, & UNISIST (Program). (1955). Bibliographical services throughout the world. Unesco.

Chicago Style (17th ed.) Citation

Unesco, Unesco. General Information Programme, and UNISIST (Program). Bibliographical Services Throughout the World. Paris: Unesco, 1955.

MLA (9th ed.) Citation

Unesco, et al. Bibliographical Services Throughout the World. Unesco, 1955.