Cita APA (7th ed.)
Pretty, J. N. The Earthscan Reader in Sustainable Agriculture. Earthscan.
Cita Chicago (17th ed.)
Pretty, Jules N. The Earthscan Reader in Sustainable Agriculture. Londres, Inglaterra: Earthscan.
Cita MLA (9th ed.)
Pretty, Jules N. The Earthscan Reader in Sustainable Agriculture. Earthscan.
Atenció: Aquestes cites poden no estar 100% correctes.