Citazione APA

Pearson, L. C. (1973). Principles of agronomy. Affiliated East-West Press.

Stile di citazione Chicago

Pearson, L C. Principles of Agronomy. New Delhi: Affiliated East-West Press, 1973.

Citazione MLA

Pearson, L C. Principles of Agronomy. Affiliated East-West Press, 1973.