TY  - BOOK
AU  - Isham,C.J.
AU  - Penrose,R.
AU  - Sciama,D.W.
TI  - Quantum gravity: an Oxford symposium 
SN  - 0198519435 :
U1  - 530.12 
PY  - 1975///
CY  - Oxford
PB  - Clarendon Press
KW  - Quantum gravity
N1  - Includes bibliographical references and index
ER  -