APA (7th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. (1942). Factors affecting usefulness of honeybees in pollination. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Factors Affecting Usefulness of Honeybees in Pollination. [Washington]: [s.n.], 1942.

MLA (9th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Factors Affecting Usefulness of Honeybees in Pollination. [s.n.], 1942.