TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Pumps -Shaft sealing systems for centrifugal and rotary pumps: ISO 21049:2004
U1  - Caja 19-B 
PY  - 2014///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normas API
KW  - Normalización
ER  -