Παραπομπή σε μορφή APA (7η εκδ.)
ETTER, J., & ET AL. (2000). DEVELOPMENT AND VALIDATION OF A SCALE MEASURING SELF-EFFICACY OF CURRENT AND FORMER SMOKERS.
Παραπομπή σε μορφή Chicago (17η εκδ.)
ETTER, J.F, και ET AL. DEVELOPMENT AND VALIDATION OF A SCALE MEASURING SELF-EFFICACY OF CURRENT AND FORMER SMOKERS. 2000.
Παραπομπή σε μορφή MLA (9th εκδ.)
ETTER, J.F, και ET AL. DEVELOPMENT AND VALIDATION OF A SCALE MEASURING SELF-EFFICACY OF CURRENT AND FORMER SMOKERS. 2000.
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