APA (7th ed.) Citation

Greenberg, M. T., Cicchetti, D., & Cummings, E. M. (1993). Attachment in the preschool years: Theory, research, and intervention. University of Chicago.

Chicago Style (17th ed.) Citation

Greenberg, Mark T., Dante Cicchetti, and E. Mark Cummings. Attachment in the Preschool Years: Theory, Research, and Intervention. Chicago, [etc.]: University of Chicago, 1993.

MLA (9th ed.) Citation

Greenberg, Mark T., et al. Attachment in the Preschool Years: Theory, Research, and Intervention. University of Chicago, 1993.