APA-viite (7. p.)
FRIEDMAN, A., & ET AL. (1996). EARLY CHILDHOOD RISK AND PROTECTIVE FACTORS FOR SUBSTANCE USE DURING EARLY ADOLESCENCE: GENDER DIFFERENCES.
Chicago-viite (17. p.)
FRIEDMAN, A.S, ja ET AL. EARLY CHILDHOOD RISK AND PROTECTIVE FACTORS FOR SUBSTANCE USE DURING EARLY ADOLESCENCE: GENDER DIFFERENCES. 1996.
MLA-viite (9. p.)
FRIEDMAN, A.S, ja ET AL. EARLY CHILDHOOD RISK AND PROTECTIVE FACTORS FOR SUBSTANCE USE DURING EARLY ADOLESCENCE: GENDER DIFFERENCES. 1996.
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