TY  - BOOK
AU  - x, x
AU  - Messel,H.
TI  - The universe and its origin: x
SN  - x   
U1  - 523.1/MEU 
PY  - 1964///
CY  - Lond
PB  - Macmillan
KW  - Astrophysics
KW  - Physics
ER  -