APA-čujuhus (7. p.)
Graziano, A. M., & Raulin, M. L. (2000). Research methods: A process of inquiry (4th ed.). Allyn and Bacon.
Chicago-čujuhus (17. p.)
Graziano, Anthony M., juo Michael L. Raulin. Research Methods: A Process of Inquiry. 4th ed. Boston: Allyn and Bacon, 2000.
MLA-čujuhus (9. p.)
Graziano, Anthony M., juo Michael L. Raulin. Research Methods: A Process of Inquiry. 4th ed. Allyn and Bacon, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.