Belsham, T. (1815). American Unitarianism: Or, A Brief history of "The progress and present state of the Unitarian churches in America." (2nd ed.). Boston: Printed by Nathaniel Willis.

Belsham, Thomas. American Unitarianism: Or, A Brief History of "The Progress and Present State of the Unitarian Churches in America.". 2nd ed. Boston: Printed by Nathaniel Willis, 1815.

Belsham, Thomas. American Unitarianism: Or, A Brief History of "The Progress and Present State of the Unitarian Churches in America.". 2nd ed. Boston: Printed by Nathaniel Willis, 1815.