APA-čujuhus (7. p.)
Lappin, P. M. (1990). Stories of Don Bosco: The life of St. John Bosco told in story form (2 ed.). Salesiana Publishers.
Chicago-čujuhus (17. p.)
Lappin, Peter M. Stories of Don Bosco: The Life of St. John Bosco Told in Story Form. 2 ed. New Rochelle, New York: Salesiana Publishers, 1990.
MLA-čujuhus (9. p.)
Lappin, Peter M. Stories of Don Bosco: The Life of St. John Bosco Told in Story Form. 2 ed. Salesiana Publishers, 1990.
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