TY  - BOOK
AU  - Rahman ,A.K.M.Khalilur, x
AU  - x
TI  - An introduction to astronomy: With numercus examples and examination papers
SN  - x      
U1  - 520/KHI 
PY  - 1973///
CY  - Dacca
PB  - Students Pub.
KW  - Astronomy
ER  -