APA (7th ed.) Citation

Zelazo, P. R., & Barr, R. G. (1989). Challenges to developmental paradigms: Implications for theory, assessment, and treatment. L. Erlbaum Associates.

Chicago Style (17th ed.) Citation

Zelazo, Philip R., and Ronald G. Barr. Challenges to Developmental Paradigms: Implications for Theory, Assessment, and Treatment. Hillsdale, N.J.: L. Erlbaum Associates, 1989.

MLA (9th ed.) Citation

Zelazo, Philip R., and Ronald G. Barr. Challenges to Developmental Paradigms: Implications for Theory, Assessment, and Treatment. L. Erlbaum Associates, 1989.