(1971). Tillage and seeding practices and machines for crop production in semiarid areas.
Chicago-viite (17. p.)Tillage and Seeding Practices and Machines for Crop Production in Semiarid Areas. 1971.
MLA-viite (9. p.)Tillage and Seeding Practices and Machines for Crop Production in Semiarid Areas. 1971.
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