Gaya APA
Baum, G, , (. (1999).
The twentieth century: A theological overview. .
Maryknoll dll:
Maryknoll dll Orbis Books dll.
Gaya MLA
Baum, Gregory, , (ed.).
"The twentieth century: A theological overview. ".
Maryknoll dll:
Maryknoll dll Orbis Books dll,
1999.
Buku.