The Princeton Language Institute, Princeton Language Institute, Philip Lief Group, & Laskowski, L. (2001). 10 days to more confident public speaking. Warner Books.
Čikaški stil citiranja (17. izdanje)The Princeton Language Institute, Princeton Language Institute, Philip Lief Group, i Lenny Laskowski. 10 Days to More Confident Public Speaking. New York: Warner Books, 2001.
MLA način citiranja (8. izdanje)The Princeton Language Institute, et al. 10 Days to More Confident Public Speaking. Warner Books, 2001.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.