TY  - BOOK
AU  - Allingham,Michael   .
TI  - Value / 
SN  - 0333342518
U1  - 384 
PY  - 1983///
CY  - London : 
PB  - Macmillan press , 
KW  - COMMUNICATIONS TELECOMMUICATION
N1  - Includes index and bibliographies
ER  -