O'Hair, D. (2007). A pocket guide to public speaking. Boston: Bedford/St. Martin's.
Trích dẫn kiểu ChicagoO'Hair, Dan. A Pocket Guide to Public Speaking. Boston: Bedford/St. Martin's, 2007.
ציטוט MLAO'Hair, Dan. A Pocket Guide to Public Speaking. Boston: Bedford/St. Martin's, 2007.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.