The Eastern Christian Churches:
Ronald G. Roberson, CSP
The Eastern Christian Churches: a brief survey - 3rd ed. - Rome Pont. Institutum Studiorum Orientalium 1990
Eastern Churches
Catholic Church--Oriental Rites
The Eastern Christian Churches: a brief survey - 3rd ed. - Rome Pont. Institutum Studiorum Orientalium 1990
Eastern Churches
Catholic Church--Oriental Rites