TY  - BOOK
AU  - Couper,Heather
AU  - Henbest,Nigel
TI  - How the universe works
SN  - 089577576X
U1  - 520/ 21
PY  - 1988///
CY  - Singapore
PB  - tien wah press ،
KW  - Astronomy
KW  - Experiments
KW  - Laboratory manuals
KW  - Scientific recreations
N1  - Includes index
ER  -