Recommended practice for occupational safety for oil and gas well drilling and servicing operations : API recommended practice 54
Recommended practice for occupational safety for oil and gas well drilling and servicing operations : API recommended practice 54
API recommended practice 54 : 54
- 3rd ed.
- Washington : American Petroleum Institute, API, 1999.
- 35 p.
Normalización
Normas API
Normalización
Caja 11-A
Normalización
Normas API
Normalización
Caja 11-A



