APA Style
Roberson, Ronald G.. (1990).
The Eastern Christian Churches: A Brief Survey .
Roma:
Pont. Institutum Studiorum Orientalium.
Chicago Style
Roberson, Ronald G..
The Eastern Christian Churches: A Brief Survey.
Roma:
Pont. Institutum Studiorum Orientalium,
1990.
Text.
MLA Style
Roberson, Ronald G..
The Eastern Christian Churches: A Brief Survey.
Roma:
Pont. Institutum Studiorum Orientalium,
1990.
Text.
Turabian Style
Roberson, Ronald G..
The Eastern Christian Churches: A Brief Survey.
Roma:
Pont. Institutum Studiorum Orientalium,
1990.
Print.