American Society of Agronomy. (2007). Crops & soils: The magazine for certified crop advisers, agronomists and soil scientists. Wiley.
Chicago ZitierstilAmerican Society of Agronomy. Crops & Soils: The Magazine for Certified Crop Advisers, Agronomists and Soil Scientists. Hoboken, NJ: Wiley, 2007.
MLA ZitierstilAmerican Society of Agronomy. Crops & Soils: The Magazine for Certified Crop Advisers, Agronomists and Soil Scientists. Wiley, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.