Παραπομπή APA

(1996). Soil organic matter: Analysis and interpretation. Wisconsin, USA: Soil Science Society of America.

Παραπομπή Chicago Style

Soil Organic Matter: Analysis and Interpretation. Wisconsin, USA: Soil Science Society of America, 1996.

Παραπομπή MLA

Soil Organic Matter: Analysis and Interpretation. Wisconsin, USA: Soil Science Society of America, 1996.

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