Public opinion measurement a survey
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Mexico
Instituto Cientifico de la Opinion Publica Mexicana
1945.
|
| Cyfres: | Problems and results of public opinion research: a series of monographs ed. by Laszo Radvanyi. vol.1
|