g G · George G. · George Gallup · H.G.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Gallup International Public Opinion Polls, Great Britain, 1937-1975 V1 | 978-0-313-20153-0 (0-313-20153-6) | 1977 |
| The Gallup Poll;: Public opinion, 1935-1971 | 978-0-394-47270-6 (0-394-47270-5) | 1972 |