एपीए उद्धरण

Uppal, S. L. (1983). Electrical wiring, estimating and costing. Khanna.

शिकागो स्टाइल उद्धरण

Uppal, S L. Electrical Wiring, Estimating and Costing. New Delhi: Khanna, 1983.

एमएलए उद्धरण

Uppal, S L. Electrical Wiring, Estimating and Costing. Khanna, 1983.