Não informado. (2003). Electrical Contracting and Maintenance. Hugh C. Maclean Publications.
Citace podle Chicago (17th ed.)Não informado. Electrical Contracting and Maintenance. Ontario, Canada: Hugh C. Maclean Publications, 2003.
Citace podle MLA (8th ed.)Não informado. Electrical Contracting and Maintenance. Hugh C. Maclean Publications, 2003.
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