APA (7th ed.) Citation

Robertson, T., English, B. C., & Alexander, R. R. (1998). Evaluating natural resource in agriculture. Iowa State University Press.

Chicago Style (17th ed.) Citation

Robertson, Thyrele, Burton C. English, and Robert R. Alexander. Evaluating Natural Resource in Agriculture. Ames: Iowa State University Press, 1998.

MLA (9th ed.) Citation

Robertson, Thyrele, et al. Evaluating Natural Resource in Agriculture. Iowa State University Press, 1998.