Shaffer, D. R. (1989). Developmental psychology: Childhood and adolescence (2nd ed.). Brooks/Cole.
Citazione stile Chigago Style (17a edizione)Shaffer, David R. Developmental Psychology: Childhood and Adolescence. 2nd ed. Pacific Grove, Calif.: Brooks/Cole, 1989.
Citatione MLA (8a ed.)Shaffer, David R. Developmental Psychology: Childhood and Adolescence. 2nd ed. Brooks/Cole, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.