APA (7th ed.) Citation

Wilkinson, R. E., & Jaques, H. E. (1979). How to know the weeds (3d ed.). W. C. Brown Co..

Chicago Style (17th ed.) Citation

Wilkinson, R. E., and H. E. Jaques. How to Know the Weeds. 3d ed. Dubuque, Iowa: W. C. Brown Co., 1979.

MLA (9th ed.) Citation

Wilkinson, R. E., and H. E. Jaques. How to Know the Weeds. 3d ed. W. C. Brown Co., 1979.