TY  - BOOK
AU  - Dempsey,Michael W.
TI  - Great world encyclopedia of science
U1  - 503 
PY  - 1977///
CY  - Maidenhead
PB  - Sampson Low
KW  - Science
KW  - encyclopedias
KW  - Technology
KW  - Encyclopedias
N1  - Includes index
ER  -