APA Citation

Ahlgren, G. H. (1951). Principles of weed control. New York: John Wiley & Sons.

Chicago Style Citation

Ahlgren, G. H. Principles of Weed Control. New York: John Wiley & Sons, 1951.

MLA Citation

Ahlgren, G. H. Principles of Weed Control. New York: John Wiley & Sons, 1951.

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