TY  - BOOK
AU  - Dushman,Saul, x
AU  - Lafferty,J.M.
TI  - Scientific foundations of vacuum technique: x
SN  - x
U1  - 621.55/DUS 
PY  - 1966///
CY  - N.Y.
PB  - Wiley
KW  - Vacuum Pumps
N1  - x
ER  -