TY  - BOOK
ED  - American Petroleum Institute, API
TI  - Procedures for inspection maintenance, repair, and remanufacture of drilling equipment: API Recommended Practice 7L
U1  - Caja 4 
PY  - 1995///
CY  - Washington
PB  - American Petroleum Institute, API
KW  - Equipos de perforación
KW  - Normalización
KW  - Normas API
ER  -