Polls & surveys : understanding what they tell us / Norman M. Bradburn, Seymour Sudman. 1st ed. (A Joint publication in the Jossey-Bass social and behavioral science series & the Jossey-Bass public administration series)
Polls & surveys : understanding what they tell us / Norman M. Bradburn, Seymour Sudman.
1st ed.
(A Joint publication in the Jossey-Bass social and behavioral science series & the Jossey-Bass public administration series)