Survey Return Rates and Questionnaire Appearance

Blumberg, Herbert , Carolyn Fuller and A. Paul Hare 1974 'Response rates in postal surveys' Public Opinion Quarterly, 38: 113-123.

Dillman. D.A. 1972 'Increasing mail questionnaire response in large samples of the general public'. Public Opinion Quarterly , 36: 254-257.

Kephart, William and Marvin Bressler 1958 'Increasing responses to mail questionnaires: a research study' Public Opinion Quarterly, 22: 123-132.

Levine, Sol and Gerald Gordon 1958 'Maximising returns on mail questionnaires' Public Opinion Quarterly, 22: 568-575.

Parten. Mildred 1966 Surveys, Polls and Samples: Practical Procedures N.Y: Cooper Square Publishers.

Scott. C. 1961 'Research on mail surveys' Journal of the Royal Statistical Society, 124: 143-205.