Gaya APA
Feldmann, C. (1999).
Adolph Kolping: Towards a Christian society. .
Nairobi:
Nairobi Paulines Publications Africa.
Gaya MLA
Feldmann, Christian.
"Adolph Kolping: Towards a Christian society. ".
Nairobi:
Nairobi Paulines Publications Africa,
1999.
Buku.