TY  - BOOK
N2  - Simple experiments illustrate mechanical principles.
AB  - Simple experiments illustrate mechanical principles.
T1  - The science book of machines /
DA  - 1992.
CY  - San Diego :
AU  - Ardley, Neil.
ET  - 1st U.S. ed.
CN  - TJ147
CN  - TJ147
PB  - Harcourt Brace Jovanovich,
PP  - San Diego :
PY  - 1992.
N1  - "Gulliver books."
ID  - 161577
KW  - Mechanical engineering
KW  - Mechanical engineering
KW  - Experiments.
SN  - 0152006133
TI  - The science book of machines /
ER  -