APA Style

Sheaffer, C, C. (2012). Introduction to Agronomy Food, Crops, and Environment (2nd ed.). Clfton Park, NY: Delmar Cengage Learning.

MLA Style

Sheaffer, Craig, C.. "Introduction to Agronomy Food, Crops, and Environment". 2nd ed. Clfton Park, NY: Delmar Cengage Learning, 2012. Text.