Dante Alighieri, Claudia Hamilton Ramsay (1862). “Dante's Divina Commedia Translated Into English, in the Metre and Triple Rhyme of the Original with Notes by Ramsay: Purgatorio”, p.77
William Wordsworth (1837). “The Complete Poetical Works of William Wordsworth: Together with a Description of the Country of the Lakes in the North of England, Now First Published with His Works ...”, p.341