Gaya APA
Arrupe, P. (1981).
Other apostolates today, selected letters and addresses, 3. Edited by Jerome Aixala. .
St Louis:
St Louis Institute of Jesuit Sources.
Gaya MLA
Arrupe, Pedro.
"Other apostolates today, selected letters and addresses, 3. Edited by Jerome Aixala. ".
St Louis:
St Louis Institute of Jesuit Sources,
1981.
Buku.