TY  - BOOK
TI  - The illustrated science and invention encyclopedia
AV  - T9 .H74 1983
PY  - 1983///
CY  - Westport, Conn.
PB  - H.S. Stuttman
KW  - Science
KW  - Encyclopedia
N1  - "Previously published in parts in the United Kingdom under the title: How it works."
ER  -