Van Zyl, J. (1995). The relationship between farm size and efficiency in South Africa agriculture. World Bank, Agriculture and Natural Resources Dept., Office of the Director.
Citace podle Chicago (17th ed.)Van Zyl, Johan. The Relationship Between Farm Size and Efficiency in South Africa Agriculture. Washington, D.C: World Bank, Agriculture and Natural Resources Dept., Office of the Director, 1995.
Citace podle MLA (9th ed.)Van Zyl, Johan. The Relationship Between Farm Size and Efficiency in South Africa Agriculture. World Bank, Agriculture and Natural Resources Dept., Office of the Director, 1995.
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