Hahner, J. C., Sokoloff, M. A., & Salisch, S. L. (2002). Speaking clearly: Improving voice and diction (6th ed.). McGraw-Hill.
Čikaški stil citiranja (17. izdanje)Hahner, Jeffrey C., Martin A. Sokoloff, i Sandra L. Salisch. Speaking Clearly: Improving Voice and Diction. 6th ed. Boston: McGraw-Hill, 2002.
MLA način citiranja (9. izdanje)Hahner, Jeffrey C., et al. Speaking Clearly: Improving Voice and Diction. 6th ed. McGraw-Hill, 2002.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.