Gaya APA
Wojtkowski, Paul A. (2006).
Introduction to agroecology principles and practices .
New York:
Food Products Press.
Gaya Chicago
Wojtkowski, Paul A.
Introduction to agroecology principles and practices.
New York:
Food Products Press,
2006.
Text.
Gaya MLA
Wojtkowski, Paul A.
Introduction to agroecology principles and practices.
New York:
Food Products Press,
2006.
Text.
Gaya Turabian
Wojtkowski, Paul A.
Introduction to agroecology principles and practices.
New York:
Food Products Press,
2006.
Print.