TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Recommended practice for the repair and remanufacture of pipeline valves: API Recommended practice 6DR
U1  - Caja 3-2 
PY  - 2012///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normalización
KW  - Normas API
KW  - Válvulas
ER  -