Sadhu, A., & Singh, A. (1983). Fundamentals of agricultural economics. 1983.
シカゴスタイル引用形Sadhu, A.N, , Amarjit Singh. Fundamentals of Agricultural Economics. Himalaya publishing house: 1983, 1983.
MLA引用形式Sadhu, A.N, , Amarjit Singh. Fundamentals of Agricultural Economics. 1983, 1983.
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