000
00305nam a2200109Ia 4500
008
160710s1957 xx 000 0 und d
082
_a
526 GRE
245
_a
MANUAL OF MAP READING AIR PHOTO READING AND FIELD SKETCHING
260
_b
HER MAJESTY'S STATIONERY OFFICE
_c
1957
300
_a
132
942
_2
ddc
_c
B
999
_c
23739
_d
23739