Roth, Michael J.2015-12-312015-12-311979http://hdl.handle.net/2097/27204Call number: LD2668 .T4 1979 R67Farm management--Nigeria--Zaria.Agriculture--Nigeria--Labor productivity.Nigeria--Rural conditions.The significance, variability and determinants of labor in west African small farm systems: a case study of eight Zaria farmersTextMasters theses