Frey, L. R., Botan, C. H., & Kreps, G. L. (2000). Investigating communication: An introduction to research methods (2nd ed.). Allyn and Bacon.
Čikaški stil citiranja (17. izdanje)Frey, Lawrence R., Carl H. Botan, i Gary L. Kreps. Investigating Communication: An Introduction to Research Methods. 2nd ed. Boston: Allyn and Bacon, 2000.
MLA način citiranja (9. izdanje)Frey, Lawrence R., et al. Investigating Communication: An Introduction to Research Methods. 2nd ed. Allyn and Bacon, 2000.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.