00481nam a2200133Ia 4500008004100000020001500041040004400056100002400100245009200124260004400216300003200260500003900292700001600331180412s9999||||xx |||||||||||||| ||und||  a085198679X  aAhmadu Bello University Library - Zaria  aSchoonhoven, A. Van 0aCommon beans research for crop improvementcedited by A. Van Schoonhoven and O. Voysest  aWallingfordbC.A.B. Internationalc1991  axii, 980p.: graphs., tables  aIncludes biblioraphical references  aVoysest, O.