TY  - BOOK
AU  - Ryans,J.L
AU  - Roper,D.L.
TI  - Process vacuum system design and operation 
SN  - 0070543550 
U1  - 621.65 
PY  - 1986///
CY  - New York
PB  - McGraw-Hill
KW  - Vacuum pumps
KW  - Chemical plants--Equipment and supplies
N1  - Includes index
ER  -