Upton, M. (1976). Agricultural production economics and resource-use. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Upton, M. Agricultural Production Economics and Resource-use. London ; New York: Oxford University Press, 1976.
Lua MLA (8ú heag.)Upton, M. Agricultural Production Economics and Resource-use. Oxford University Press, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.