APA (7th ed.) Citation

Ernst, J. E. (1969). Roger Williams, New England firebrand. AMS Press.

Chicago Style (17th ed.) Citation

Ernst, James Emanuel. Roger Williams, New England Firebrand. New York: AMS Press, 1969.

MLA (9th ed.) Citation

Ernst, James Emanuel. Roger Williams, New England Firebrand. AMS Press, 1969.