Editore: American Mathematical Society, Providence RI, 1979
Da: Chequamegon Books, Washburn, WI, U.S.A.
hardcover. Condizione: very good. no jacket. 6 7/8 x 10 1/8" 460 pages. contributors: Antonio Cordoba, Miguel De Guzman, Benjamin Muchenhoupt, Stephen Waiger, Jaques Peyriere, Elena Prestini, Fulvio Ricci, Bjorn E. J. Dahlberg, Umberto Neri, Cora Sadosky, William C. Connett and others. some light spotting to covers.