TY - BOOK TI - Occupational safety and health standards (as amended, 1989) U1 - Fil. 363.11 Oc15 2019 PY - 2019/// CY - Quezon City, Philippines : PB - Occupational Safety and Health Center KW - 1. Occupational safety and health KW - 2. Industrial hygiene law and legislation KW - 3. Industrial safety --- Law and legislation KW - 4. Philippines ER -