000 00331nam a2200121Ia 4500
005 20251007104651.0
008 251006s9999 xx 000 0 und d
100 _aflowers,thomas harold.
245 0 _a.introduction to exchange systems. flowers,thomas harold.
260 _a1st.ed | .London Wiley
260 _c1976
942 _cBOK
999 _c12059
_d12059