000 cam a22 a 4500
999 _c6409
_d6409
003 BD-DhIDS
005 20180408071540.0
008 180407s1971 -uk||||| |||| 00| 0 eng d
040 _aBD-DhIDS
_cBD-DhIDS
_dBD-DhIDS
041 _aEng
086 _aGB COI BIS R.5631 71
245 1 0 _aBritish civil aviation /
260 _aLondon :
_bGB,
_c1971
300 _a8p.;
_c24cm.
504 _aIncludes bibliographical references and index.
650 0 4 _aAir traffic
650 0 4 _aBritish
942 _2ddc
_cBK