Spark, Gareth. <br/><br/>
Vitiation of contracts :  international contractual principles and English law / 
Gareth Spark. 
 - Cambridge, UK :  Cambridge University Press,  2013. 
 - xviii, 335 p. :  24 cm. 
<br/><br/>Includes bibliographical references (pages 322-325) and index. 
<br/><br/><label>ISBN: </label>9781107031784 (hbk.)  RM333.88 1107031788 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Impossibility of performance.<br/>Nullity.<br/>Discharge of contracts.<br/>Breach of contract.<br/>Impossibility of performance--England.<br/>Nullity--England.<br/>Discharge of contracts--England.<br/>Breach of contract--England.