Não informado. Studies in formative spirituality. Duquesne University, Institute of Formative Spirituality.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Studies in Formative Spirituality. Pittsburgh, Pa: Duquesne University, Institute of Formative Spirituality.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Studies in Formative Spirituality. Duquesne University, Institute of Formative Spirituality.
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