Duncan, C. A. M. (1996). The centrality of agriculture: Between humankind and the rest of nature. McGill-Queen's University Press.
Chicago-referens (17:e uppl.)Duncan, Colin A. M. The Centrality of Agriculture: Between Humankind and the Rest of Nature. Montreal ; Buffalo: McGill-Queen's University Press, 1996.
MLA-referens (9:e uppl.)Duncan, Colin A. M. The Centrality of Agriculture: Between Humankind and the Rest of Nature. McGill-Queen's University Press, 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.