000 00344cam a22001217a 4500
008 180718b1965 xxu||||| |||| 00| 0 eng d
082 _aT1121 Sa21
100 _aSaigal, J.C.
245 _aThe choice of sectors anf regions
_cby J.C. Saigal
260 _aRotterdam
_bRotterdam University Press
_c1965
300 _a96p.
650 _aSectors-Regions
999 _c434345
_d434345