Respectfully yours, signed and sealed Francis of Assisi : aspects of his authorship and focuses of his spirituality / Edith van den Goorbergh and Theodore Zweerman ; edited by Elise Saggau and Paul Sansone
. – St. Bonaventure : The Franciscan Institute, St. Bonaventure University, 2001
. – XII, 435 p. ; 23 cm
. –