@BOOK {IITA:1988c, title = {Le plan a moyen terme de l'lita 1989-1993}, author = {IITA, }, year = {1988}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, isbn = {978-131-029-4}, note = {97p. IITA medium-term plan - french version}, }