APA-referens (7:e uppl.)

Boff, L. (2006). Francis of Assisi: A model for human liberation. Orbis Books.

Chicago-referens (17:e uppl.)

Boff, Leonardo. Francis of Assisi: A Model for Human Liberation. Maryknoll, N.Y.: Orbis Books, 2006.

MLA-referens (8:e uppl.)

Boff, Leonardo. Francis of Assisi: A Model for Human Liberation. Orbis Books, 2006.