TY  - BOOK
AU  - Budlong,John P.
TI  - Sky and sextant
SN  - 0442211368
U1  - 623.89 
PY  - 1978///
CY  - New York
PB  - Van Nostrand Reinhold
KW  - Navigation
KW  - Nautical astronomy
KW  - Sextant
N1  - Includes index
ER  -