Author

William T. Preyer

3 titles available
Cover of The Mind of the Child, Part II: The Development of the Intellect, International Education; Series Edited By William T. Harris, Volume IX. by William T. Preyer

The Mind of the Child, Part II: The Development of the Intellect, International Education; Series Edited By William T. Harris, Volume IX.
Cover of Biologische Zeitfragen: Schulreform--lebenserforschung--darwin--hypnotismus... by William T. Preyer

Biologische Zeitfragen: Schulreform--lebenserforschung--darwin--hypnotismus...

Naturwissenschaftliche thatsachen und probleme

About William T. Preyer

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