APA (7th ed.) Citation

Ausubel, D. P., & Sullivan, E. V. (1970). Theory and problems of child development. Grune & Stratton.

Chicago Style (17th ed.) Citation

Ausubel, David P., and Edmund V. Sullivan. Theory and Problems of Child Development. New York: Grune & Stratton, 1970.

MLA (9th ed.) Citation

Ausubel, David P., and Edmund V. Sullivan. Theory and Problems of Child Development. Grune & Stratton, 1970.