Cita APA

Jatoi, I., Cummings, K. M., & Cazap, E. (2009). Global Tobacco Problem Getting Worse, Not Better. American Society of Clinical Oncology.

Chicago Style Citation

Jatoi, Ismail, K. Michael Cummings, i Eduardo Cazap. Global Tobacco Problem Getting Worse, Not Better. American Society of Clinical Oncology, 2009.

Cita MLA

Jatoi, Ismail, K. Michael Cummings, i Eduardo Cazap. Global Tobacco Problem Getting Worse, Not Better. American Society of Clinical Oncology, 2009.