Wertlieb Donald, Jacobs Francine, & Lerner Richard M. (2003). Handbook of applied developmental science: Promoting positive child, adolescent, and family development through research, policies, and programs 1 Applying developmental science for youth and families : historical and theoretical foundations. Sage Publications.

Wertlieb Donald, et al. Handbook of Applied Developmental Science: Promoting Positive Child, Adolescent, and Family Development Through Research, Policies, and Programs 1 Applying Developmental Science for Youth and Families : Historical and Theoretical Foundations. Sage Publications, 2003.