Cita APA

Covey, L. S., Joseph, A. M., & Shoptaw, S. (2003). Response: Getting Tough with Smoking. National Institute on Drug Abuse.

Chicago Style Citation

Covey, Lirio S., Anne M. Joseph, i Steven Shoptaw. Response: Getting Tough With Smoking. National Institute on Drug Abuse, 2003.

Cita MLA

Covey, Lirio S., Anne M. Joseph, i Steven Shoptaw. Response: Getting Tough With Smoking. National Institute on Drug Abuse, 2003.