Daboll’s schoolmaster’s assistant : improved and enlarged, being a plain practical system of arithmetick adapted to the United States / by Nathan Dabo, 660 - Chandler Collection no. 69, Volume: Archives Chandler Collection no. 69. Clarion University Archives.

Daboll’s schoolmaster’s assistant : improved and enlarged, being a plain practical system of arithmetick adapted to the United States / by Nathan Dabo, 660 - Chandler Collection no. 69, Volume: Archives Chandler Collection no. 69. Clarion University Archives. http://as-clarion.klnpa.org/repositories/2/resources/1050 Accessed January 14, 2026.