000 00305nam a2200109Ia 4500
008 160710s1957 xx 000 0 und d
082 _a526 GRE
245 _aMANUAL OF MAP READING AIR PHOTO READING AND FIELD SKETCHING
260 _bHER MAJESTY'S STATIONERY OFFICE
_c1957
300 _a132
942 _2ddc
_cB
999 _c23739
_d23739