APA (7e ed.) Bronvermelding

Arrupe, P., & Aixala, J. (1979). Challenge to religious life today (2d ed.). Institute of Jesuit Sources ; Gujarat Sahitya Prakash.

Chicago (17e ed.) Bronvermelding

Arrupe, Pedro, en Jerome Aixala. Challenge to Religious Life Today. 2d ed. St. Louis : Anand, India: Institute of Jesuit Sources ; Gujarat Sahitya Prakash, 1979.

MLA (8e ed.) Bronvermelding

Arrupe, Pedro, en Jerome Aixala. Challenge to Religious Life Today. 2d ed. Institute of Jesuit Sources ; Gujarat Sahitya Prakash, 1979.