TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Corrosion resistant, bolted bonnet gate valves - flanged and butt-welding ends: API Standard 603
U1  - Caja 17 
PY  - 2013///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normalización
KW  - Normas API
ER  -