TY  - BOOK
AU  - Yarwood,John
TI  - High vacuum technique: theory, practice, industrial applications, and properties of materials 
U1  - 621.55 23
PY  - 1955/// [Reprinted 1961]
CY  - London
PB  - Chapman & Hall
KW  - Vacuum pumps
KW  - Vacuum
N1  - Includes index
ER  -