TY  - BOOK
AU  - Sherif,Muzafer
AU  - Sherif,Carolyn W.
TI  - Groups in harmony and tension: an integration of studies on intergroup relations 
T2  - [Harper's psychological series]
U1  - 301.15 
PY  - 1953///
CY  - New York
PB  - Harper
KW  - Social groups
N1  - Includes index
ER  -