APA (7th ed.) Citation

Wolff, P. H. (1987). The development of behavioral states and the expression of emotions in early infancy: New proposals for investigation. University of Chicago Press.

Chicago Style (17th ed.) Citation

Wolff, Peter H. The Development of Behavioral States and the Expression of Emotions in Early Infancy: New Proposals for Investigation. Chicago: University of Chicago Press, 1987.

MLA (9th ed.) Citation

Wolff, Peter H. The Development of Behavioral States and the Expression of Emotions in Early Infancy: New Proposals for Investigation. University of Chicago Press, 1987.