TY  - BOOK
AU  - Wudbury, David O
AU  - Tiwari, Ramchandra (Tr)
AU  - Tiwari, Siddha
TI  - Naveen vigyan
U1  - 620.4 21st
PY  - 1990///
CY  - Delhi
PB  - Aatmaram
KW  - Science; Engineering; Physics; Electronics
ER  -