TY  - BOOK
AU  - Payne-Gaposchkin, Cecilia
TI  - Introduction to astronomy
U1  - 520 
PY  - 1954///
CY  - London
PB  - Methuen
KW  - Astronomy
KW  - Constellations
KW  - Earth
KW  - Galaxies
KW  - Solar system
ER  -