TY - BOOK AU - Mutsaers,H.J.W. ED - International Institute of Tropical Agriculture. TI - A field guide for on-farm experimentation SN - 9781311258 AV - S540.O53 F54 1997 U1 - 630/.7/24 21 PY - 1997/// CY - Ibadan, Nigeria PB - International Institute of Tropical Agriculture KW - Agriculture KW - Research KW - On-farm KW - Africa N1 - "August 1997."; Includes bibliographical references (p. 225-227) and indexes ER -