TY  - JOUR
A1  - Litwak, E.
A1  - Szelenyi, I. 
T1  - Primary group structures and their functions: Kin, neighbours, and friends
Y1  - 1969
DO  - 10.2307/2091957
JF  - American Sociological Review 
VL  - 34
IS  - 4

ER  -