Hathaway, G. J., & Proctor, N. H. (2004). Proctor and Hughes' chemical hazards of the workplace. Hoboken, N.J. : Wiley-Interscience.
Cita Chicago (17th ed.)Hathaway, Gloria J., i Nick H. Proctor. Proctor and Hughes' Chemical Hazards of the Workplace. Hoboken, N.J. : Wiley-Interscience, 2004.
Cita MLA (9th ed.)Hathaway, Gloria J., i Nick H. Proctor. Proctor and Hughes' Chemical Hazards of the Workplace. Hoboken, N.J. : Wiley-Interscience, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.