Thomas Campbell (1854). “The Pleasures of Hope, Gertrude of Wyoming, and othe Poems: To which are added Collin's and Gray's poetical works Seventh Thousand”, p.92
John Milton, Edward Young, Thomas Gray, James Beattie, William Collins (1836). “The Poetical Works of Milton, Young, Gray, Beattie, and Collins”, p.188
Percy Bysshe Shelley (1852). “A defence of poetry. Essay on the literature, arts, and manners of the Athenians. Preface to the Banquet of Plato. The banquet”, p.45