TY  - BOOK
AU  - Sidgwick, J.B. 
TI  - Introducing astronomy
SN  - 571048234
U1  - 520  
PY  - 1951///
CY  - London	
PB  - Faber and Faber	
KW  - Astronomy
KW  - Astronomical Instrument
KW  - The Planets
ER  -