Gaya APA
Soule, J, D., Piper, J, K. (1992).
Farming in nature's image : an ecological approach to agriculture .
Washington:
Islad Press.
Gaya MLA
Soule, Judith, D., Piper, Jon, K.
"Farming in nature's image : an ecological approach to agriculture".
Washington:
Islad Press,
1992.
Buku Tercetak.