Surveys, Polls and Samples
Parten, Mildred
Surveys, Polls and Samples Practical Procedures - New York Harper and Brothers Publishers 1950 - 624
Social sciences
Public opinion polls Social surveys
300.723 / P19S
Surveys, Polls and Samples Practical Procedures - New York Harper and Brothers Publishers 1950 - 624
Social sciences
Public opinion polls Social surveys
300.723 / P19S