Informative bulletines "BOOKS" 2012
N 1/2	N 16/17	N 32	N 45
N 3/4	N 18/19	N 33/34	N 46
N 5	N 20/21	N 35	N 47
N 6/7	N 22/23	N 36	N 48
N 8/9	N 24	N 37	N 49/50
N 10	N 25	N 38	N 51/52
N 11/12	N 26/27	N 39/40
N 13	N 28/29	N 41
N 14	N 30	N 42
N 15	N 31	N 43/44