Cita APA (7a ed.)

Engel, U. (1989). Uncertain career prospects and problem behavior in adolescence. The social world of adolescents.

Cita Chicago Style (17a ed.)

Engel, Uwe. "Uncertain Career Prospects and Problem Behavior in Adolescence." The Social World of Adolescents 1989.

Cita MLA (8a ed.)

Engel, Uwe. "Uncertain Career Prospects and Problem Behavior in Adolescence." The Social World of Adolescents, 1989.