TY  - BOOK
AU  - Guthrie,A.
AU  - Wakerling,R.K.
TI  - Vacuum equipment and techniques
AV  - QC166 .G8 1949
U1  - 533.5 
PY  - 1949///
CY  - New York
PB  - McGraw-Hill
KW  - Vacuum equipments
KW  - Electromagnatics
ER  -