Saint Francis: nature mystic; the derivation and significance of the nature stories in the Franciscan Legend - Armstrong, Edward Allworthy (Berkeley, University of California Press, 1973)
Bibliography: p. 253-254.
Keywords: Francis, -- of Assisi, Saint, -- 1182-1226 -- Legends; Christian saints -- Cult -- History of doctrines -- Middle Ages, 600-1500.; Animals -- Religious aspects -- Christianity; Christian hagiography