एपीए उद्धरण

Bhattacharya, S., & Raina, K. (1991). Electrical design estimating and costing. New Age International.

शिकागो स्टाइल उद्धरण

Bhattacharya, S.K, और K.B Raina. Electrical Design Estimating and Costing. New Delhi: New Age International, 1991.

एमएलए उद्धरण

Bhattacharya, S.K, और K.B Raina. Electrical Design Estimating and Costing. New Age International, 1991.