Intellectual arithmetic : upon the inductive method of instruction, 660 - Chandler Collection no. 11, Volume: Archives Chandler Collection no. 11. Clarion University Archives.

Intellectual arithmetic : upon the inductive method of instruction, 660 - Chandler Collection no. 11, Volume: Archives Chandler Collection no. 11. Clarion University Archives. http://as-clarion.klnpa.org/repositories/2/resources/992 Accessed December 24, 2025.