TY  - BOOK
AU  - MacDougall,Curtis Daniel
TI  - Understanding public opinion: a guide for newspapermen and newspaper readers 
AV  - HM 261 M137u 1952
PY  - 1952///
CY  - New York
PB  - The Macmillan Company
KW  - Public opinion
KW  - United States
KW  - Opinión pública
KW  - Estados Unidos
KW  - 20151100
ER  -