TY  - SER
AU  - Weiss, Harvey 
AU  - Opena, Eloisa C
TI  - Inventios and inventors
U1  - Per. 370.71’051 M689 2010/2011 
PY  - 2010///
CY  - Manila : 
PB  - The Grade School, Inc., 
KW  - Inventions and inventors
KW  - Scientists
ER  -