TY  - BOOK
AU  - Notkin, Jerome J.,
AU  - Gulkin,Sidney
TI  - The how and why wonder book of beginning science: volume I: beginning science; science experiments; machines
SN  - 089434076X
U1  - 500 
PY  - 1987///
CY  - Chicago
PB  - J. G. Ferguson Publishing Company
KW  - Science
KW  - Experiments
ER  -