APA (7th ed.) Citation

Cobia, D. W., & Zimmer, D. E. (1978). Sunflower: Production and marketing. North Dakota State University of Agriculture and Applied Science.

Chicago Style (17th ed.) Citation

Cobia, David W., and David E. Zimmer. Sunflower: Production and Marketing. Fargo, N.D.: North Dakota State University of Agriculture and Applied Science, 1978.

MLA (9th ed.) Citation

Cobia, David W., and David E. Zimmer. Sunflower: Production and Marketing. North Dakota State University of Agriculture and Applied Science, 1978.