APA Edition Citation

Cassman, K. g., Connor, D. j., & Loomis, R. s. (2011). Crop ecology. Cambridge university.

Chicago Edition Citation

Cassman, Kenneth g., David j. Connor, and Robert s. Loomis. Crop Ecology. Usa: Cambridge university, 2011.

MLA Edition Citation

Cassman, Kenneth g., et al. Crop Ecology. Cambridge university, 2011.