APA (7th ed.) Citation

Coleman, J. C. (1989). The focal theory of adolescence: A psychological perspective. The social world of adolescents, 43-56.

Chicago Style (17th ed.) Citation

Coleman, John C. "The Focal Theory of Adolescence: A Psychological Perspective." The Social World of Adolescents 1989: 43-56.

MLA (8th ed.) Citation

Coleman, John C. "The Focal Theory of Adolescence: A Psychological Perspective." The Social World of Adolescents, 1989, pp. 43-56.

Warning: These citations may not always be 100% accurate.