APA-referens (7:e uppl.)
National Research Council (U.S.). Committee on Twenty-First Century Systems Agriculture & ebrary, Inc. (2010). Toward sustainable agricultural systems in the 21st century. National Academies Press.
Chicago-referens (17:e uppl.)
National Research Council (U.S.). Committee on Twenty-First Century Systems Agriculture och Inc ebrary. Toward Sustainable Agricultural Systems in the 21st Century. Washington, D.C.: National Academies Press, 2010.
MLA-referens (9:e uppl.)
National Research Council (U.S.). Committee on Twenty-First Century Systems Agriculture och Inc ebrary. Toward Sustainable Agricultural Systems in the 21st Century. National Academies Press, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.