TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Onshore oil and gas production practices for protection of the environment: API recommended practice 51
U1  - Caja 11-A 
PY  - 2001///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Normas API
KW  - Normalización
ER  -