ebrary, Inc, Brookfield, H. C., Parsons, H., & Brookfield, M. (2003). Agrodiversity: Learning from farmers across the world. United Nations University Press : UNEP : GEF.
Chicago-referens (17:e uppl.)ebrary, Inc, H. C. Brookfield, Helen Parsons, och Muriel Brookfield. Agrodiversity: Learning from Farmers Across the World. Tokyo ; New York: United Nations University Press : UNEP : GEF, 2003.
MLA-referens (9:e uppl.)ebrary, Inc, et al. Agrodiversity: Learning from Farmers Across the World. United Nations University Press : UNEP : GEF, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.