APA (7th ed.) Citation

McCullough, D. G., & Nichols, I. (1999). David McCullough answers audience questions in the eleventh annual Celebrity Lecture Series at the Wharton Center.

Chicago Style (17th ed.) Citation

McCullough, David G., and Irving Nichols. David McCullough Answers Audience Questions in the Eleventh Annual Celebrity Lecture Series at the Wharton Center. 1999.

MLA (9th ed.) Citation

McCullough, David G., and Irving Nichols. David McCullough Answers Audience Questions in the Eleventh Annual Celebrity Lecture Series at the Wharton Center. 1999.