Czaja, R., & Blair, J. (2005). Designing surveys: A guide to decisions and procedures (2nd ed.). Pine Forge Press.
Citazione stile Chigago Style (17a edizione)Czaja, Ronald, e Johnny Blair. Designing Surveys: A Guide to Decisions and Procedures. 2nd ed. Thousand Oaks, Calif: Pine Forge Press, 2005.
Citatione MLA (9a ed.)Czaja, Ronald, e Johnny Blair. Designing Surveys: A Guide to Decisions and Procedures. 2nd ed. Pine Forge Press, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.