Patton, M. Q. (2002). Qualitative research and evaluation methods (3a. ed.). Sage Publications.
Chicago-čujuhus (17. p.)Patton, Michael Quinn. Qualitative Research and Evaluation Methods. 3a. ed. Thousand Oaks: Sage Publications, 2002.
MLA-čujuhus (9. p.)Patton, Michael Quinn. Qualitative Research and Evaluation Methods. 3a. ed. Sage Publications, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.