The occupational health professional's services and qualifications : questions and answers
- 1999 Rev.
- [Washington, D.C.] : U.S. Dept. of Labor, Occupational Safety and Health Administration, 1999.
- Physical description
- iv, 29 p. ; 21 cm.
- Includes bibliographical references.
- Publication date
- Shipping list no.: 97-0279-P.
- "OSHA 3160."