Uppal, S. L. (1983). Electrical wiring, estimating and costing. Khanna.
Chicago Edition CitationUppal, S L. Electrical Wiring, Estimating and Costing. New Delhi: Khanna, 1983.
Cita MLAUppal, S L. Electrical Wiring, Estimating and Costing. Khanna, 1983.
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