000 00268nam a2200109Ia 4500
008 221001s1968 xx 000 0 eng d
082 _a333.7 AER
245 0 _aAerial surveys and integrated studies
260 _aParis
_bUNESCO
_c1968
300 _a575p.
942 _2ddc
_cBK
999 _c5248
_d5248