Merrill, R. (1976). Radical agriculture. New York University Press.
Lua i Stíl Chicago (17ú heag.)Merrill, Richard. Radical Agriculture. New York: New York University Press, 1976.
Lua MLA (9ú heag.)Merrill, Richard. Radical Agriculture. New York University Press, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.