TY  - BOOK
ED  - Department of Health
TI  - Implementing rules and regulations of chapter VII: industrial hygiene of the sanitation code of the Philippines amending administrative order no. 111 s. 1991 
AV  - RA 601 D46 1991 COM D-0138-COM
PY  - 1991///
CY  - Manila
PB  - DOH
KW  - Sanitation code
KW  - Public health
KW  - Laws and legislation
ER  -