This is an Italian book/magazine containing Witch World and Fritz Leiber's The Green Millennium. It was published in Milan by Ponzoni Editore in the July 1, 1967 edition of Cosmo. I Capolavori della fantascienza, no. 66; no ISBN; 288 pages; 4.8 x 7.0 inches; paperback. The cover art was done by Luigi Garonzi.