TY  - BOOK
AU  - MIDDLETON John
AU  -  TAIT David
TI  - Tribes without rulers:  Studies in African segmentary systems.   
T2  - Routledge library editions-anthropology and ethnography
SN  - 9780415329972
U1  - Y172.6, J8 
PY  - 1958///
CY  - London
PB  - Routledge          
KW  - Tribes
ER  -