Crispolti, F. (1918). The venerable Don Bosco: Founder of the Salesian Society and the Daughters of Our Lady Help of Christians. Salesian Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCrispolti, Filippo. The Venerable Don Bosco: Founder of the Salesian Society and the Daughters of Our Lady Help of Christians. Turin: Salesian Press, 1918.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCrispolti, Filippo. The Venerable Don Bosco: Founder of the Salesian Society and the Daughters of Our Lady Help of Christians. Salesian Press, 1918.
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