APA (7th ed.) Citation

Heintze, I. (1963). The Organization of the small public library. Unesco.

Chicago Style (17th ed.) Citation

Heintze, Ingeborg. The Organization of the Small Public Library. Paris: Unesco, 1963.

MLA (9th ed.) Citation

Heintze, Ingeborg. The Organization of the Small Public Library. Unesco, 1963.