APA (7th ed.) Citation

Silbereisen, R. K., & Lerner, R. M. (2007). Approaches to positive youth development. Sage Publications.

Chicago Style (17th ed.) Citation

Silbereisen, R. K., and Richard M. Lerner. Approaches to Positive Youth Development. Los Angeles: Sage Publications, 2007.

MLA (8th ed.) Citation

Silbereisen, R. K., and Richard M. Lerner. Approaches to Positive Youth Development. Sage Publications, 2007.

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