Frey, J. H. (1989). Survey research by telephone (2nd ed.). Sage.
Chicago Style (17th ed.) CitationFrey, James H. Survey Research by Telephone. 2nd ed. Newbury Park, Calif: Sage, 1989.
MLA (9th ed.) CitationFrey, James H. Survey Research by Telephone. 2nd ed. Sage, 1989.
Warning: These citations may not always be 100% accurate.