TY  - BOOK
AU  - Percil, John.
AU  - Gray, Joanna.
TI  - Prospects I: an advanced course student's book
SN  - 0140808582
U1  - 428.2 PER 
PY  - 1988///
CY  - London
PB  - Penguin Books
N1  - Includes index
ER  -