APA (7th ed.) Citation

Willcox, O. W. (1930). Principles of agrobiology: Or, The laws of plant growth in relation to crop production. Palmer Publishing Corporation.

Chicago Style (17th ed.) Citation

Willcox, O. W. Principles of Agrobiology: Or, The Laws of Plant Growth in Relation to Crop Production. New York: Palmer Publishing Corporation, 1930.

MLA (9th ed.) Citation

Willcox, O. W. Principles of Agrobiology: Or, The Laws of Plant Growth in Relation to Crop Production. Palmer Publishing Corporation, 1930.