APA citiranje

Sigurdsson, S. O., Ring, B. M., O’Reilly, K., & Silverman, K. (2012). Barriers to Employment among Unemployed Drug Users: Age Predicts Severity.

Citação norma Chicago

Sigurdsson, Sigurdur Oli, Brandon M. Ring, Kristen O’Reilly, and Kenneth Silverman. Barriers to Employment Among Unemployed Drug Users: Age Predicts Severity. 2012.

MLA citiranje

Sigurdsson, Sigurdur Oli, Brandon M. Ring, Kristen O’Reilly, and Kenneth Silverman. Barriers to Employment Among Unemployed Drug Users: Age Predicts Severity. 2012.