00620cam a2200193 a 4500 9780896291829 (alk. paper) DLC 338 INT 2011 C164 Or.1 Yield gaps and potential agricultural growth in West and Central Africa / Washington, D.C. : International Food Policy Research Institute, c2011. xv, 140 p. : ill. ; 23 cm. IFPRI research monograph Agriculture Agriculture Agricultural productivity Agricultural productivity Nin-Pratt, Alejandro. EK 19194 19194 0 0 0 338_000000000000000_INT_2011_C140_OR_1 0 84279 LBC LBC C140 2020-05-13 338 INT 2011 C140 Or.1 A36938 2020-05-13 EK