Cita APA (7th ed.)
HEISHMAN, S., & ET AL. SOCIETY FOR RESEARCH ON NICOTINE AND TOBACCO.
Cita Chicago (17th ed.)
HEISHMAN, S.J, i ET AL. SOCIETY FOR RESEARCH ON NICOTINE AND TOBACCO.
Cita MLA (9th ed.)
HEISHMAN, S.J, i ET AL. SOCIETY FOR RESEARCH ON NICOTINE AND TOBACCO.
Atenció: Aquestes cites poden no estar 100% correctes.