Durr, Robert Allen. On the mystical poetry of Henry Vaughan / by R. A. Durr. - Cambridge, Mass. : Harvard University Press, 1962. - xxi, 178 p. ; 22 cm. Includes bibliographical references and index. LCCN: 62020246 Subjects--Personal Names: Vaughan, Henry, 1622-1695. LC Class. No.: PR3744 / .D8