TY  - BOOK
TI  - The illustrated science and invention encyclopedia
U1  - 603.21 
PY  - 1983///
CY  - Westport, Conn.
PB  - H.S. Stuttman
KW  - Technology
KW  - Dictionaries
KW  - Science
KW  - Dictionaries, Juvenile
N1  - "Previously published in parts in the United Kingdom under the title: How it works."; Vol. 21 has subtitle: Historic inventions; At head of title: How it works
ER  -