APA (7th ed.) Citation

Maier, H. W. (1969). Three theories of child development: The contributions of Erik H. Erikson, Jean Piaget, and Robert R. Sears, and their applications (Rev. ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Maier, Henry William. Three Theories of Child Development: The Contributions of Erik H. Erikson, Jean Piaget, and Robert R. Sears, and Their Applications. Rev. ed. New York: Harper & Row, 1969.

MLA (9th ed.) Citation

Maier, Henry William. Three Theories of Child Development: The Contributions of Erik H. Erikson, Jean Piaget, and Robert R. Sears, and Their Applications. Rev. ed. Harper & Row, 1969.