Cita APA (7a ed.)

Nicolson, S., & Shipstead, S. G. (1994). Through the looking glass: Observations in the early childhood classroom. Merrill.

Cita Chicago Style (17a ed.)

Nicolson, Sheryl, y Susan G. Shipstead. Through the Looking Glass: Observations in the Early Childhood Classroom. New York: Merrill, 1994.

Cita MLA (9a ed.)

Nicolson, Sheryl, y Susan G. Shipstead. Through the Looking Glass: Observations in the Early Childhood Classroom. Merrill, 1994.