TY  - BOOK
AU  - Walker, Rodger,
TI  - Pump selection: A consulting engineer's manual 
SN  - 0250400057
AV  - TS900 W34
PY  - 1972///
CY  - Ann arbor, mich.
PB  - Ann arbor science
KW  - Maquinaria de bombeo
ER  -