APA-viite (7. p.)
SHIFFMAN, S., & ET AL. (2002). REAL-WORD EFFICACY OF PRESCRIPTION AND OVER-THE-COUNTER NICOTINE REPLACEMENT THERAPY.
Chicago-viite (17. p.)
SHIFFMAN, S., ja ET AL. REAL-WORD EFFICACY OF PRESCRIPTION AND OVER-THE-COUNTER NICOTINE REPLACEMENT THERAPY. 2002.
MLA-viite (9. p.)
SHIFFMAN, S., ja ET AL. REAL-WORD EFFICACY OF PRESCRIPTION AND OVER-THE-COUNTER NICOTINE REPLACEMENT THERAPY. 2002.
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