Punjab Agricultural University. (1967). How to double the farm crop production in the Punjab (2d ed.). PAU Press.
Citace podle Chicago (17th ed.)Punjab Agricultural University. How to Double the Farm Crop Production in the Punjab. 2d ed. Ludhiana: PAU Press, 1967.
Citace podle MLA (8th ed.)Punjab Agricultural University. How to Double the Farm Crop Production in the Punjab. 2d ed. PAU Press, 1967.
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