Sigel, I. E., & Cocking, R. R. (1977). Cognitive development from childhood to adolescence : a constructivist perspective / (by) Irving E. Sigel, Rodney R. Cocking: A constructivist perspective. Holt, Rinehart and Winston.
Chicago Style (17th ed.) CitationSigel, Irving E., and Rodney R. Cocking. Cognitive Development from Childhood to Adolescence : A Constructivist Perspective / (by) Irving E. Sigel, Rodney R. Cocking: A Constructivist Perspective. New York ; London (etc.): Holt, Rinehart and Winston, 1977.
MLA (9th ed.) CitationSigel, Irving E., and Rodney R. Cocking. Cognitive Development from Childhood to Adolescence : A Constructivist Perspective / (by) Irving E. Sigel, Rodney R. Cocking: A Constructivist Perspective. Holt, Rinehart and Winston, 1977.
Warning: These citations may not always be 100% accurate.