एपीए उद्धरण

Hopkin, S., Sibly, R., & Walker, C. (1996). Principles of ecotoxicology. London: Taylor and Francis.

शिकागो स्टाइल उद्धरण

Hopkin, S.P., R.M Sibly, और C.H Walker. Principles of Ecotoxicology. London: Taylor and Francis, 1996.

एमएलए उद्धरण

Hopkin, S.P., R.M Sibly, और C.H Walker. Principles of Ecotoxicology. London: Taylor and Francis, 1996.