TY  - BOOK
AU  - Guthrie,Andrew
AU  - Wakerling,R.K.
TI  - Vacuum equipment and techniques
U1  - 533.5 23
PY  - 1949///
CY  - New York
PB  - McGraw-Hill
KW  - Vacuums
N1  - Includes bibliographical references
ER  -