SpringerLink (Online service), Gess-Newsome, J., & Lederman, N. G. (1999). Examining Pedagogical Content Knowledge: The Construct and its Implications for Science Education. Springer Netherlands.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Julie Gess-Newsome, και Norman G. Lederman. Examining Pedagogical Content Knowledge: The Construct and Its Implications for Science Education. Dordrecht: Springer Netherlands, 1999.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Examining Pedagogical Content Knowledge: The Construct and Its Implications for Science Education. Springer Netherlands, 1999.
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