Lua APA (7ú heag.)

Yang, W. (1965). Methods Of Farm Management Investigations For Improving Farm Productivity (Revised Edition.). FAO.

Lua i Stíl Chicago (17ú heag.)

Yang, W.Y. Methods Of Farm Management Investigations For Improving Farm Productivity. Revised Edition. Rome: FAO, 1965.

Lua MLA (9ú heag.)

Yang, W.Y. Methods Of Farm Management Investigations For Improving Farm Productivity. Revised Edition. FAO, 1965.

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