TY - BOOK ED - Technical Centre for Agricultural and Rural Cooperation (CTA) TI - Biotechnology: enhancing research on tropical crops in Africa SN - 9781310901 AV - CTA(02) PY - 1992/// CY - Wageningen, Netherlands PB - CTA KW - YAMS KW - TROPICAL CROPS--AFRICA KW - BIOTECHNOLOGY--RESEARCH ER -