By Eggerstedt H.   Hall R.B.   van Wijnbergen S.   in World Development

ISSN:0305-750X|23|2|211-232

Elsevier‎(1995)‎

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By Hall R. B.   Hilton G. D.   Maynard C. A.   in Journal of Forestry

ISSN:0022-1201|80|5|291-294

Society of American Foresters‎(1982)‎

Access to resources Favorite 1.8904288

By Iakovoglou V.   Misra M.K.   Hall R.B.   Knapp A.D.   in Seed Science and Technology

ISSN:1819-5717|35|3|771-777

International Seed Testing Association‎(2007)‎

Access to resources Favorite 1.512343