TY  - BOOK
AU  - Gallup,George
AU  - Rae,Saul Forbes
TI  - The pulse of democracy: the public-opinion poll and how it works 
U1  - 301.154 
PY  - 1940/// [Reprinted 1968]
CY  - New York
PB  - Greenwood Press
KW  - American Institute of Public Opinion
KW  - Public opinion polls
N1  - Bibliography: p. 326-328. and Index
ER  -