APA (7th ed.) Citation

Hunziker, O. F. (1940). The butter industry (3d ed., rewritten and enl.). The author.

Chicago Style (17th ed.) Citation

Hunziker, Otto Frederick. The Butter Industry. 3d ed., rewritten and enl. La Grange, Ill.: The author, 1940.

MLA (9th ed.) Citation

Hunziker, Otto Frederick. The Butter Industry. 3d ed., rewritten and enl. The author, 1940.