Cita APA (7a ed.)

Harms, T., & Cryer, D. (2006). Video observations for the Early childhood environment rating scale: Revised edition. Teachers College Press.

Cita Chicago Style (17a ed.)

Harms, Thelma, y Debby Cryer. Video Observations for the Early Childhood Environment Rating Scale: Revised Edition. New York, NY: Teachers College Press, 2006.

Cita MLA (9a ed.)

Harms, Thelma, y Debby Cryer. Video Observations for the Early Childhood Environment Rating Scale: Revised Edition. Teachers College Press, 2006.