TY  - BOOK
AU  - Dimitoff,George Z.
AU  - Baker,James G.
TI  - Telescopes and accessories 
U1  - 522.2 DIM B  
PY  - 1948///.
CY  - Philadelphia : 
PB  - The Blakiston Company, 
KW  - Astronomical instruments
KW  - Telescopes
N1  - Includes index.
ER  -