000 003150000a22001330004500
245 _aIntroduction to exchange systems
100 _aFlowers, T.H.
260 _aLondon
_bJohn Wiley
_c1976
300 _axvii, 326p. : ill.
020 _a0471018651
080 _a621.395.722
_bF6
041 _aEN
942 _cBK
999 _c115230
_d115230