ធនធាន ដាក់ស្លាក: Agriculture History
2 items found (Showing 1 - 2)
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01 មករា 2000 AIB no. 99 24pages, illustrated, photos Personal study by the author in 1938-1939, studying the record of agriculture in countries wehre the land had been under cultivation for hundreds or thousands of years.
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01 មករា 1991 Describes the exchanges of animal, agricultural, and cultural products between the Old World and the New World during the five hundred years since Columbus's expeditions, assessing the damage and benefits to populations on both sides of the Atlantic.