TY  - BOOK
AU  - Couper, Heather
TI  - How the universe works / 
SN  - 9780751300802
AV  - QB62.7  .C68 1994
U1  - GS 523.1 
PY  - 1994///.
CY  - London : 
PB  - Dorling Kindersley, 
KW  - Universe
ER  -