APA (7th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. (1938). Sawfly injurious to young pines. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Sawfly Injurious to Young Pines. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

United States. Bureau of Entomology and Plant Quarantine. Sawfly Injurious to Young Pines. [s.n.], 1938.

Warning: These citations may not always be 100% accurate.