00473nam a2200181Ia 4500020001400000082002300014100002200037245002400059260002800083300001600111500000500127690000600132700000500138952010700143964001700250921000900267999001500276  a333126998  a338.5212bSi592.CD  aSimmons, Peter J.  aChoice and demandb  aLondonbMacmillanc1974  a120p. Index  a  a   a  001040708GRaISIbISId1998-08-20l0o338.5212 Si592.CDpG1021r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a5273  c5273d5273