APA (7th ed.) Citation

Giné, X., Karlan, D., & Zinman, J. (2012). Put Your Money Where Your Butt Is: A Commitment Contract for Smoking Cessation.

Chicago Style (17th ed.) Citation

Giné, Xavier, Dean Karlan, and Jonathan Zinman. Put Your Money Where Your Butt Is: A Commitment Contract for Smoking Cessation. 2012.

MLA (8th ed.) Citation

Giné, Xavier, et al. Put Your Money Where Your Butt Is: A Commitment Contract for Smoking Cessation. 2012.