APA (7th ed.) Citation

Schuller, R. H. Possibility thinking [: What great thing would you attempt... if you knew you could not fail. Nightingale-Conant Audio.

Chicago Style (17th ed.) Citation

Schuller, Robert H. Possibility Thinking [: What Great Thing Would You Attempt... If You Knew You Could Not Fail. Illinois: Nightingale-Conant Audio.

MLA (9th ed.) Citation

Schuller, Robert H. Possibility Thinking [: What Great Thing Would You Attempt... If You Knew You Could Not Fail. Nightingale-Conant Audio.