APA (7th ed.) Citation

Boynton, P. L., & Boynton, J. C. (1938). Psychology of child development. Educational Publishers.

Chicago Style (17th ed.) Citation

Boynton, Paul Lewis, and Juanita Curry Boynton. Psychology of Child Development. Minneapolis, Nashville [etc.]: Educational Publishers, 1938.

MLA (8th ed.) Citation

Boynton, Paul Lewis, and Juanita Curry Boynton. Psychology of Child Development. Educational Publishers, 1938.