TY  - DATA
AU  - Yarwood,J.
TI  - High vacuum technique: theory, practice and properties of materials
U1  - 621.55 
PY  - 1967///
CY  - London
PB  - Chapman and Hall
KW  - Ultra high vacuum
KW  - Vacuum technology
KW  - Vacuum
N1  - Includes index; Bibliography: p. 263 - 269
ER  -