Sets of Multiples Cambridge Tracts in Mathematics, nr. 118 Autor Richard R. Hall 29 apr 2009 Paperback Preț: 312.36 lei 6-8 săpt.
Divisors Cambridge Tracts in Mathematics, nr. 90 Autor Richard R. Hall et al. 3 dec 2008 Paperback Preț: 306.53 lei 6-8 săpt.