000 00239nam a2200097 4500
245 _aChoice and demand
_cPeter J. Simmons
100 _aSimmons, Peter J.
260 _aLondon
_bMacmillan
_c1974
300 _a120p.; 22cm.
082 _a338.521
_bSIM
999 _c21126
_d21126