Lua APA (7ú heag.)

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.

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