TY  - BOOK
AU  - C. S. DEVERELL
TI  - COMMUNICATION
SN  - 852581696
U1  - 658.45 DEV 
PY  - 1978///
CY  - LONDON
PB  - GEE AND CO PUBLISHERS LIMITED
KW  - A BOOK FOR STUDENTS
N1  - Includes;Index
ER  -