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.42
William Cowper (1862). “Letters of William Cowper; being a selection from his correspondence: with a sketch of his life, and biographical notices of his correspondents. [With a portrait.]”, p.54
William Cowper, James Thomson (1832). “The Works of Cowper and Thompson: Including Many Letters and Poems Never Before Published in this Country. With a New and Interesting Memoir of the Life of Thomson”, p.73
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.154
William Cowper, James Thomson (1832). “The Works of Cowper and Thompson: Including Many Letters and Poems Never Before Published in this Country. With a New and Interesting Memoir of the Life of Thomson”, p.94
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.265
William Cowper, Robert Southey (1836). “The Works of William Cowper, Esq., Comprising His Poems, Correspondence, and Translations: With a Life of the Author”, p.234
William Cowper, James Thomson (1851). “The Works of Cowper and Thomson: Including Many Letters and Poems Never Before Published in this Country : with a New and Interesting Memoir of the Life of Thomson”, p.122