Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Wolff, Peter H. The Development of Behavioral States and the Expression of Emotions in Early Infancy: New Proposals for Investigation. Chicago, Ill. [u.a.]: Univ. of Chicago Pr, 1987.

Cita MLA (8a ed.)

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