TY  - BOOK
AU  - Sonquist John A
AU  -  Dunkel berg William C
TI  - Survey and opinion research:  Procedures for proces   
SN  - 0138782644
U1  - Sigma b4, L7 
PY  - 1977///
CY  - New Jersey 
PB  - Prentice-Hall         
KW  - Social Science
N1  - Bibliography P 471-98
ER  -