TY  - BOOK
AU  - Ferguson,Sherry Devereaux
TI  - Researching the public opinion environment: theories and methods 
SN  - 0761915311
PY  - 2000///
CY  - Thousand Oaks, California
PB  - Sage Publications
KW  - Public opinion
KW  - Public opinion polls
N1  - Includes bibliographical references (p. 263-282) and index
ER  -