TY  - BOOK
AU  - S Kumaravelu
AU  -  Susheela kumaravelu, 
TI  - Astronomy : For Degree Classes
U1  - 520 
PY  - 1970///
CY  - Nagercoil
PB  - Diocesan Press
N1  - S Kumaravelu & Susheela kumaravelu: Astronomy : For Degree Classes.  (3 rd Ed)  Nagercoil.  Diocesan Press, 1970.--(520KUM)
ER  -