Gaya APA
Caspar, R. (1989).
Trying to answer questions: Fr. Robert Caspar and a group of Christians living in Tunisia. .
Rome:
PISAI.
Gaya MLA
Caspar, Robert.
"Trying to answer questions: Fr. Robert Caspar and a group of Christians living in Tunisia. ".
Rome:
PISAI,
1989.
Buku.