APA (7th ed.) Citation

Francis, D., & Tittel, E. (2005). PMP: Practice questions (1st edition.). Que/Certification.

Chicago Style (17th ed.) Citation

Francis, David, and Ed Tittel. PMP: Practice Questions. 1st edition. [Indianapolis, IN]: Que/Certification, 2005.

MLA (9th ed.) Citation

Francis, David, and Ed Tittel. PMP: Practice Questions. 1st edition. Que/Certification, 2005.