TY  - BOOK
AU  - Singh, Jagjit
TI  - Great ideas and theories of modern cosmology
U1  - 523.1 SIN 1961 
PY  - 1961///
CY  - London
PB  - Constable And Co. Ltd.
KW  - Astronomi
KW  - Cosmology
KW  - Evren
ER  -