Yegidis, B. l., & Weinbach, R. W. (1991). Instructor's manual for research methods... Longman.
Chicago-čujuhus (17. p.)Yegidis, Bonnie l., juo Robert W. Weinbach. Instructor's Manual for Research Methods... New York: Longman, 1991.
MLA-čujuhus (9. p.)Yegidis, Bonnie l., juo Robert W. Weinbach. Instructor's Manual for Research Methods... Longman, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.