Listed versus Unlisted Numbers in Telephone-Survey Samples.
Autor: | Blankenship, A.B. |
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Zdroj: | Journal of Advertising Research. Feb77, Vol. 17 Issue 1, p39-42. 4p. |
Databáze: | Business Source Ultimate |
Externí odkaz: |
Autor: | Blankenship, A.B. |
---|---|
Zdroj: | Journal of Advertising Research. Feb77, Vol. 17 Issue 1, p39-42. 4p. |
Databáze: | Business Source Ultimate |
Externí odkaz: |