Cita APA

Estados Unidos.Departament of Health, E. (1970). Control techniques for sulfur oxide air pollutants. Washington, D.C.: [s.n.].

Citación estilo Chicago

Estados Unidos.Departament of Health, Education. Control Techniques for Sulfur Oxide Air Pollutants. Washington, D.C.: [s.n.], 1970.

Cita MLA

Estados Unidos.Departament of Health, Education. Control Techniques for Sulfur Oxide Air Pollutants. Washington, D.C.: [s.n.], 1970.