Frier, J. p., & Gazley Frier, M. E. Industrial lighting systems.
Cita Chicago (17th ed.)Frier, John páginas, i Mary E. Gazley Frier. Industrial Lighting Systems.
Cita MLA (8th ed.)Frier, John páginas, i Mary E. Gazley Frier. Industrial Lighting Systems.
Atenció: Aquestes cites poden no estar 100% correctes.