TY  - BOOK
AU  - Gupta,A.C.
AU  - Tripath,A.
AU  - Avasthi,D.K.
TI  - Ultra high school vacuum techniques
U1  - 530.12 
PY  - 2002///
CY  - Kolkata
PB  - Allied Pub.
KW  - Vacuum technology
KW  - History
ER  -