TY  - BOOK
AU  - Collinson,M.P.
TI  - Usamao chiefdom, Kwimba District
T2  - Farm Management Surveys; 2
AV  - IRA HD2137.T2C61  
PY  - 1962///
CY  - Ukiriguru
PB  -  : Western Research Centre
KW  - farm managent survey
ER  -