Una guia para trabajar sin peligro con silice : si es silice, es mas que un simple polvo.

Bibliographic Details
Corporate Authors:	United States. Department of Labor, National Institute for Occupational Safety and Health
Format:	Government Document Book
Language:	Spanish
Published:	[Washington, D.C.] : [Atlanta, Ga.] : Departamento del Trabajo de los Estados Unidos ; Instituto Nacional de Seguridad y Salud Ocupacional, [2002?]
Subjects:	Silicosis > United States > Prevention > Handbooks, manuals, etc. Lungs > Dust diseases > United States > Prevention > Handbooks, manuals, etc. Industrial safety > United States > Handbooks, manuals, etc.

Evans: US Documents (Annex 5th floor)