TY  - BOOK
AU  - Moulton, Forest Ray
TI  - Introduction to astronomy
U1  - 520 MOU 
PY  - 1919///
CY  - New York
PB  - Macmillan Company
KW  - Solar system
KW  - Stars and galaxies
KW  - Observational astronomy
N1  - Includes index
ER  -