Gaya APA

McWhirter, J, J. et al (2007). At Risk Youth : A Comprehensive Response for Counselors, Teachers, Psychologists, and Human Services Professionals 4'th Ed. (4). USA: Thomson Brooks/Cole.

Gaya MLA

McWhirter, J., Jeffries. et al. "At Risk Youth : A Comprehensive Response for Counselors, Teachers, Psychologists, and Human Services Professionals 4'th Ed.". 4 USA: Thomson Brooks/Cole, 2007. Text.