TY  - BOOK
AU  - Yost, Edna
TI  - Modern Americans in science and technology / 
U1  - 925.0973 YOS 
PY  - 1967///.
CY  - Madras : 
PB  - Higginbothams P. Limited, 
KW  - Scientists
KW  - United States
KW  - Inventors
KW  - Scientists -- United States
ER  -