TY - BOOK AU - LUKAS BRADER TI - SUSTAINABLE FOOD PRODUCTION IN SUB-SAHARAN SN - 978 131 086 3 U1 - P633IN8S PY - 1992/// CY - NIGERIA PB - INTERNATIONAL INSTITUTE OF TROPICAL AGRICULTURE KW - SUSTAINABLE FOOD PRODUCTION IN SUB-SAHARAN N1 - GIFT ER -