King, G., Keohane, R. O., & Verba, S. Designing Social Inquiry: Scientific inference in qualitative research. Princeton University Press.
Chicago-čujuhus (17. p.)King, Gary, Robert O. Keohane, juo Sidney Verba. Designing Social Inquiry: Scientific Inference in Qualitative Research. New Jersey: Princeton University Press.
MLA-čujuhus (9. p.)King, Gary, et al. Designing Social Inquiry: Scientific Inference in Qualitative Research. Princeton University Press.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.