TY  - BOOK
AU  - Crummey Donald
AU  -  Stewart C C Ed.
TI  - Modes of production in Africa:  The precolonial era   
T2  - Sage Series on African Modernization and Development
U1  - X:2.6.N, M1 
PY  - 1981///
CY  - Beverly
PB  - Hills Sage Publications        
ER  -