000 00245nam a2200109Ia 4500
008 160710s1947 xx 000 0 und d
100 _aNOTATION FOR SURVEY MAPS
245 _aCIRCULAR 29
260 _bHMSO
_c1947
300 _a3
942 _2ddc
_cB
999 _c13205
_d13205