Czaja, R. (1996). Designing surveys: A guide to decisions and procedures. Pine Forge.
Chicago-čujuhus (17. p.)Czaja, Ronald. Designing Surveys: A Guide to Decisions and Procedures. London: Pine Forge, 1996.
MLA-čujuhus (9. p.)Czaja, Ronald. Designing Surveys: A Guide to Decisions and Procedures. Pine Forge, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.