APA (7th ed.) Citation

Hawking, S., & Runger, N. (1988). A brief history of time (Unabridged.). Recorded Books Inc..

Chicago Style (17th ed.) Citation

Hawking, Stephen, and Nelson Runger. A Brief History of Time. Unabridged. Prince Frederick: Recorded Books Inc., 1988.

MLA (8th ed.) Citation

Hawking, Stephen, and Nelson Runger. A Brief History of Time. Unabridged. Recorded Books Inc., 1988.

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