TY  - BOOK
AU  - Hann,Judith
TI  - How science works
SN  - 0895773821 :
AV  - Q164 .H26 1991
U1  - 507.8 20
PY  - 1991///
CY  - Pleasantville, N.Y.
PB  - Reader's Digest Association
KW  - Scientific recreations
KW  - Science
KW  - Experiments
KW  - Popular works
N1  - Includes index
ER  -