John Keats (2015). “Sonnets (Complete Edition): 63 Sonnets from one of the most beloved English Romantic poets, influenced by John Milton and Edmund Spenser, and one of the greatest lyric poets in English Literature, alongside William Shakespeare”, p.226, e-artnow
John Keats (2015). “John Keats - The Man Behind The Lyrics: Life, letters, and literary remains: Complete Letters and Two Extensive Biographies of one of the most beloved English Romantic poets”, p.226, e-artnow