ID:DA07703563
Hawtin, Geoffrey
Hawtin, G.
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edited by C. Webb and G. Hawtin
Commonwealth Agricultural Bureaux c1981
Available at 2 libraries
editors, Geoffrey C. Hawtin and George J. Chancellor
International Center for Agricultural Research in the Dry Areas : International Development Research Centre c1979 IDRC 126e
pbk.
Available at 3 libraries