000 00300nam a2200109Ia 4500
008 160710s1951 xx 000 0 und d
082 _a507 U 44 I
245 _aINVENTORIES OF APPARATUS AND MATERIALS FOR TEACHING SCIENCE
260 _bUNITED NATIONS EDUCTION
_c1951
300 _a116
942 _2ddc
_cB
999 _c12302
_d12302