APA (7 वां संस्करण) प्रशस्ति पत्र
Goorbergh, E. v. d., Zweerman, T. H., Saggau, E., & Sansone, P. (2001). Respectfully yours, signed and sealed, Francis of Assisi: Aspects of his authorship and focuses of his spirituality. Franciscan Institute.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Goorbergh, Edith van den, Th. H. Zweerman, Elise Saggau, और Paul Sansone. Respectfully Yours, Signed and Sealed, Francis of Assisi: Aspects of His Authorship and Focuses of His Spirituality. St. Bonaventure, New York: Franciscan Institute, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Goorbergh, Edith van den, et al. Respectfully Yours, Signed and Sealed, Francis of Assisi: Aspects of His Authorship and Focuses of His Spirituality. Franciscan Institute, 2001.
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