Matura, T., & Lachance, P. (2010). Francis of Assisi: Heritage and heirs eight centuries later ([1st English ed.].). Franciscan Institute.
Chicago-viite (17. p.)Matura, Thaddée, ja Paul Lachance. Francis of Assisi: Heritage and Heirs Eight Centuries Later. [1st English ed.]. St. Bonaventure, N.Y.: Franciscan Institute, 2010.
MLA-viite (8. p.)Matura, Thaddée, ja Paul Lachance. Francis of Assisi: Heritage and Heirs Eight Centuries Later. [1st English ed.]. Franciscan Institute, 2010.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.