APA (7th ed.) Citation

Weber, D., & Keating, C. (2011). How firm a foundation. Macmillan Audio.

Chicago Style (17th ed.) Citation

Weber, David, and Charles Keating. How Firm a Foundation. [New York]: Macmillan Audio, 2011.

MLA (8th ed.) Citation

Weber, David, and Charles Keating. How Firm a Foundation. Macmillan Audio, 2011.

Warning: These citations may not always be 100% accurate.