Agricultural Systems of the World: An Evolutionary Approach: 5 (Cambridge Geographical Studies, Series Number 5)
by D. B. Grigg
ISBN 13: 9780521098434
Format: Paperback (372 pages) Publisher: Cambridge University Press Published: 07 Nov 1974
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Population Growth and Agrarian Change: An Historical Perspective (Cambridge Geographical Studies)
ISBN 13: 9780521296359
Format: Paperback (356 pages) Publisher: Cambridge University Press Published: 18 Dec 1980