William Cowper, Robert Southey, William Harvey (1835). “The Works of William Cowper: Comprising His Poems, Correspondence, and Translations. With a Life of the Author”, p.181
William Cowper (1830). “Poems ... With a sketch of his life and a vindication of his religious principles and character. Third edition, corrected and enlarged. [With a portrait.]”, p.64
William Cowper (1856). “The task, Table talk, and other poems: With critical observations of various authors on his genius and character, and notes, critical and illustrative”, p.55
William Cowper (1855). “The Complete Poetical Works of William Cowper: With Life, and Critical Notice of His Writings. Eight Engravings on Steel”, p.14