00438nam a2200145 a 450000500170000000800410001702000150005805000230007310000190009624500750011526000470019030000210023752100090025865000250026720140310183139.0020823s19uu    xx            00    eng d  a019876412X  aKD 720b.Ib22 1999  aIbbetson, D.J.  aA historical introduction to the law of obligations /cD. J. Ibbetson.  aGreat Britain :bOxford University,c1999.  a307 p. :c25 cm.  aBSBA  aObligatioins ( law )