McManus. (1999). Safety & Health in Confined Spaces. Lewis Pub.
Cita Chicago (17th ed.)McManus. Safety & Health in Confined Spaces. Boca Raten: Lewis Pub, 1999.
Cita MLA (9th ed.)McManus. Safety & Health in Confined Spaces. Lewis Pub, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.