APA

(1999). Occupational safety and health laws in the United States, Mexico, and Canada: an overview. Washington, D.C: U.S. Dept. of Labor, Occupational Safety and Health Administration.

Chicago

1999. Occupational safety and health laws in the United States, Mexico, and Canada: an overview. Washington, D.C: U.S. Dept. of Labor, Occupational Safety and Health Administration.

Harvard

(1999). Occupational safety and health laws in the United States, Mexico, and Canada: an overview. Washington, D.C: U.S. Dept. of Labor, Occupational Safety and Health Administration.

MLA

Occupational safety and health laws in the United States, Mexico, and Canada: an overview. Washington, D.C: U.S. Dept. of Labor, Occupational Safety and Health Administration. 1999.