TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Design calculations for pressure-containing equipment: API Standard 6X
U1  - Caja 3-2 
PY  - 2019///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normalización
KW  - Normas API
KW  - Válvulas
KW  - Cabeza de pozos
ER  -