APA (7th ed.) Citation

(1920). Insect control in flour mills. [publisher not identified].

Chicago Style (17th ed.) Citation

Insect Control in Flour Mills. [Washington]: [publisher not identified], 1920.

MLA (9th ed.) Citation

Insect Control in Flour Mills. [publisher not identified], 1920.

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