Bourque, L., & Fielder,Eve. (2002). How to conduct telephone surveys (2nd.). Sage.
Chicago Edition CitationBourque, Linda.B, i Fielder,Eve. How to Conduct Telephone Surveys. 2nd. New Delhi: Sage, 2002.
Cita MLABourque, Linda.B, i Fielder,Eve. How to Conduct Telephone Surveys. 2nd. Sage, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.