Informative bulletines "BOOKS" 2017
N 1/2/3	N 20	N 38/39
N 4/5	N 21	N 40/41
N 6	N 22	N 42/43
N 7/8	N 23/24	N 44/45
N 9/10	N 25/26	N 46
N 11/12	N 27/28	N 47/48
N 13/14	N 29/30	N 49/50
N 15/16	N 31/33	N 51/52
N 17	N 34/35
N 18/19	N 36/37