एपीए उद्धरण

Spellman, F. R. (2013). Environmental impacts of hydraulic fracturing. CRC.

शिकागो स्टाइल उद्धरण

Spellman, Frank R. Environmental Impacts of Hydraulic Fracturing. Boca Raton: CRC, 2013.

एमएलए उद्धरण

Spellman, Frank R. Environmental Impacts of Hydraulic Fracturing. CRC, 2013.