APA ציטוט

Hey, K., & Perera, R. (2005). Quit and Win contests for smoking cessation.

Chicago Style (17th ed.) Citation

Hey, K., and R. Perera. Quit and Win Contests for Smoking Cessation. 2005.

ציטוט MLA

Hey, K., and R. Perera. Quit and Win Contests for Smoking Cessation. 2005.