APA (7th ed.) Citation
HAHN, E., & ET AL. SMOKING CESSATION IN DRUG TREATMENT PROGRAMS.
Chicago Style (17th ed.) Citation
HAHN, E.J, and ET AL. SMOKING CESSATION IN DRUG TREATMENT PROGRAMS.
MLA (9th ed.) Citation
HAHN, E.J, and ET AL. SMOKING CESSATION IN DRUG TREATMENT PROGRAMS.
Warning: These citations may not always be 100% accurate.