Groves, R. M., & Kahn, R. L. (1979). Surveys by telephone: A national comparison with personal interviews.
Chicago Style CitationGroves, Robert M., and Robert Louis Kahn. Surveys By Telephone: A National Comparison With Personal Interviews. 1979.
MLA CitationGroves, Robert M., and Robert Louis Kahn. Surveys By Telephone: A National Comparison With Personal Interviews. 1979.
Warning: These citations may not always be 100% accurate.