CICERO. De natura deorum libri tres. W. introd. & comm. by J.B. Mayor. 1880-85. 3 vols. Ocl. (Spine ends worn/dam., weak hinges). Rare. -- Id. De officiis ll. III. W. introd. analysis & comm. by H.A. Holden. New. ed. (Repr. ed. 1899). 1966. Ocl. -- A.J. KLEYWEGT. Ciceros Arbeitsweise im 2. & 3. Buch der Schrift De natura deorum. 1961. Owrps. -- (5).