TY  - BOOK
AU  - Spark,Gareth
TI  - Vitiation of contracts: international contractual principles and English law 
SN  - 9781107031784 (hbk.)
PY  - 2013///
CY  - Cambridge, UK
PB  - Cambridge University Press
KW  - Impossibility of performance
KW  - Nullity
KW  - Discharge of contracts
KW  - Breach of contract
KW  - England
N1  - Includes bibliographical references (pages 322-325) and index
ER  -