Cita APA (7a ed.)

Hardy, R. E. (1974). Problems of adolescents: Social and psychological approaches. American lecture series.

Cita Chicago Style (17a ed.)

Hardy, Richard E. "Problems of Adolescents: Social and Psychological Approaches." American Lecture Series 1974.

Cita MLA (8a ed.)

Hardy, Richard E. "Problems of Adolescents: Social and Psychological Approaches." American Lecture Series, 1974.