Trevethick, R. A. (1973). Environmental and industrial health hazards: A practical guide. Heinemann Medical.
Cita Chicago (17th ed.)Trevethick, R. A. Environmental and Industrial Health Hazards: A Practical Guide. London: Heinemann Medical, 1973.
Cita MLA (9th ed.)Trevethick, R. A. Environmental and Industrial Health Hazards: A Practical Guide. Heinemann Medical, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.