TY  - GEN
AU  - Percil,John
TI  - Prospects: An Advanced course - Student's book 
SN  - 0140808582
AV  - PE1128 
PY  - 1988///
CY  - London
PB  - Penguin.
KW  - English language
KW  - Study and teaching
KW  - Textbooks for foreign speakers
N1  - Includes index
ER  -