Nicolson, S., & Shipstead, S. G. (1994). Through the looking glass: Observations in the early childhood classroom. Merrill.
Lua i Stíl Chicago (17ú heag.)Nicolson, Sheryl, agus Susan G. Shipstead. Through the Looking Glass: Observations in the Early Childhood Classroom. New York: Merrill, 1994.
Lua MLA (9ú heag.)Nicolson, Sheryl, agus Susan G. Shipstead. Through the Looking Glass: Observations in the Early Childhood Classroom. Merrill, 1994.
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