Roggen, H. (1970). Spirit and life: The Gospel way of life in the writings of St. Francis and St. Clare. Franciscan Herald Press.
Čikaški stil citiranja (17. izdanje)Roggen, Heribert. Spirit and Life: The Gospel Way of Life in the Writings of St. Francis and St. Clare. Chicago, Ill.: Franciscan Herald Press, 1970.
MLA način citiranja (8. izdanje)Roggen, Heribert. Spirit and Life: The Gospel Way of Life in the Writings of St. Francis and St. Clare. Franciscan Herald Press, 1970.
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