Mathematics, second edition, Volume 2 Editat de A. D. Aleksandrov et al. 15 mar 1969 Paperback Preț: 295.12 lei 6-8 săpt.
Mathematics, second edition, Volume 1 Editat de A. D. Aleksandrov et al. 15 mar 1969 Paperback Preț: 377.38 lei 6-8 săpt.