TY  - BOOK
AU  - Jewikes,John
AU  - Sawers,David
AU  - Stillerman,Richard
TI  - The sources of invention
U1  - 608 
PY  - 1958///
CY  - London
PB  - Macmillan
KW  - Technological innovations
KW  - Inventions
KW  - Creative ability in Technology
N1  - Includes bibliographical references and index
ER  -