TY  - BOOK
AU  - Crook,Wilfrid Evelyn[from old catalog]
TI  - Elementary mathematics for wireless operators,
U1  - 510.24621381 
PY  - 1942///
CY  - London
PB  - Sir I. Pitman & sons, ltd.
KW  - Mathematics
KW  - Radio
KW  - MCE
ER  -