Baker, D. 1. (1972). Schism, heresy and religious protest: Papers read at the Tenth Summer Meeting and the Eleventh Winter Meeting of the Ecclesiastical History Society. Cambridge: At the University Press.

Baker, Derek 1931-. Schism, Heresy and Religious Protest: Papers Read At the Tenth Summer Meeting and the Eleventh Winter Meeting of the Ecclesiastical History Society. Cambridge: At the University Press, 1972.

Baker, Derek 1931-. Schism, Heresy and Religious Protest: Papers Read At the Tenth Summer Meeting and the Eleventh Winter Meeting of the Ecclesiastical History Society. Cambridge: At the University Press, 1972.