TY  - BOOK
AU  - Hall,John Scoville
TI  - Radar aids to navigation
T2  - MIT radiation laboratory series
U1  - 621.38 
PY  - 1947///
CY  - New York
PB  - McGraw-Hill Book Co.
KW  - Radar
KW  - Navigation
KW  - Loran
ER  -