Theory and practice of teaching, 660 - Chandler Collection no. 64, Volumes: Archives Chandler Collection no. 64. Clarion University Archives.

Theory and practice of teaching, 660 - Chandler Collection no. 64, Volumes: Archives Chandler Collection no. 64. Clarion University Archives. http://as-clarion.klnpa.org/repositories/2/resources/1045 Accessed December 20, 2025.