TY  - CHAP
A1  - Erickson, B.H. 
T1  - The Relational Basis of Attitudes
Y1  - 1988
A3  - Wellman, B.
A3  - Berkowitz, S.D.
T2  - Social structures : a network approach
CY  - Cambridge 
PB  - Cambridge University Press
SP  - 99
EP  - -121

ER  -