TY - BOOK TI - Indigenous knowledge systems : implications for agriculture and international development SN - 0945271158 AV - S 494.5.I47 Ind PY - 1989/// CY - Ames, Iowa, USA, Washington, D.C., USA PB - Technology and Social Change Program, Iowa State University, Academy for Educational Development KW - Traditional farming KW - Ethnoscience KW - Africa KW - Agricultural innovations KW - Agricultural assistance KW - Management KW - Rural development ER -