Herren, R. V. (2007). The science of agriculture: A biological approach. Clifton Park, NY: Thomson/Delmar Learning.
Chicago ZitierstilHerren, Ray V. The Science of Agriculture: A Biological Approach. Clifton Park, NY: Thomson/Delmar Learning, 2007.
MLA ZitierstilHerren, Ray V. The Science of Agriculture: A Biological Approach. Clifton Park, NY: Thomson/Delmar Learning, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.