Milton, J., & Leonard, J. (2003). Paradise lost: John Milton. Ed. with an introduction and notes by John Leonard. Penguin Books.

Milton, John, and John Leonard. Paradise Lost: John Milton. Ed. with an Introduction and Notes by John Leonard. London [u.a.]: Penguin Books, 2003.

Milton, John, and John Leonard. Paradise Lost: John Milton. Ed. with an Introduction and Notes by John Leonard. Penguin Books, 2003.