DÍAZ, A., ECHEVERRÍA, J., IBARRA, A., (ED.)Structures in mathematical theories. Reports of the San Sebastian international symposium september 25-29, 1990.San Sebastian, Universidad del Pais Vasco, 1990.
492 pp. Sewn. *spine slightly damaged, otherwise good condition*
Contributors W. Diederich, P. Garavaso, L. Magnani a.o.