TY  - BOOK
TI  - Sight reduction tables for air navigation (selected stars) : epoch 2020. pub. no 249 vol.1
SN  - 0-9799045-9-5
U1  - M 623.89 S575 2020 
PB  - Celestaire, Inc.
KW  - Nautical charts
N1  - 600 Technology (App Sciences)
ER  -