Recommended practice for occupational safety for oil and gas well drilling and servicing operations. 54. 3rd ed. API recommended practice 54.
Recommended practice for occupational safety for oil and gas well drilling and servicing operations. 54. 3rd ed. API recommended practice 54.
- Washington American Petroleum Institute, API 1999
= API recommended practice 54
Normas API
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Normas API
Normalización
Bibliorato



