APA (7th ed.) Citation

R. G. Klein. (1986). Child and adolescent psychiatry: Modern approaches. Contemporary psychology, 31(12), 939-940.

Chicago Style (17th ed.) Citation

R. G. Klein. "Child and Adolescent Psychiatry: Modern Approaches." Contemporary Psychology 31, no. 12 (1986): 939-940.

MLA (8th ed.) Citation

R. G. Klein. "Child and Adolescent Psychiatry: Modern Approaches." Contemporary Psychology, vol. 31, no. 12, 1986, pp. 939-940.