TY  - BOOK
AU  - PARKER, GEORGE  W .
TI  - ELEMENTS OF ASTRONOMY / 
U1  - 520 
PY  - 1956///
CY  - PATNA
PB  - SCIENTIFIC BOOK CO.
KW  - ASTRONOMY
N1  - 6842 / 4TH ED / 1959 / 246 , 24 P / 8.70/-
ER  -