APA (7th ed.) Citation

Middlekauff, W., & Michelbacher, A. (1950, May). Walnut aphid control: Aphicide in May codling moth spray effective in northern California. California Agriculture.

Chicago Style (17th ed.) Citation

Middlekauff, W., and A. Michelbacher. "Walnut Aphid Control: Aphicide in May Codling Moth Spray Effective in Northern California." California Agriculture May. 1950.

MLA (9th ed.) Citation

Middlekauff, W., and A. Michelbacher. "Walnut Aphid Control: Aphicide in May Codling Moth Spray Effective in Northern California." California Agriculture, May. 1950.