Παραπομπή APA

(1991). Modeling plant and soil systems. Wisconsin, USA: American Society of Agronomy, Inc.

Παραπομπή Chicago Style

Modeling Plant and Soil Systems. Wisconsin, USA: American Society of Agronomy, Inc, 1991.

Παραπομπή MLA

Modeling Plant and Soil Systems. Wisconsin, USA: American Society of Agronomy, Inc, 1991.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.