Cabal Seminar 77 – 79: Proceedings, Caltech-UCLA Logic Seminar 1977 – 79 Lecture Notes in Mathematics, nr. 839 Editat de A. S. Kechris et al. feb 1981 Paperback Preț: 378.99 lei 6-8 săpt.
Cabal Seminar 76–77: Proceedings, Caltech-UCLA Logic Seminar 1976–77 Lecture Notes in Mathematics, nr. 689 Editat de A. S. Kechris et al. 5 oct 1978 Paperback Preț: 379.51 lei 6-8 săpt.