एपीए उद्धरण

Naresh Singh. (2018). Handbook of water and wastewater treatment plant operations. Oxford Book Company.

शिकागो स्टाइल उद्धरण

Naresh Singh. Handbook of Water and Wastewater Treatment Plant Operations. 2018: Oxford Book Company, 2018.

एमएलए उद्धरण

Naresh Singh. Handbook of Water and Wastewater Treatment Plant Operations. Oxford Book Company, 2018.