APA Citation

Colby, S. (1989). Herbicide Handbook of the Weed Science Society of Amerika Sixth Edition.

Chicago Style Citation

Colby, S. Herbicide Handbook of the Weed Science Society of Amerika Sixth Edition. 1989.

MLA Citation

Colby, S. Herbicide Handbook of the Weed Science Society of Amerika Sixth Edition. 1989.

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