Lua APA (7ú heag.)
Shukla, S. K., & Srivastava, P. R. (1997). Encyclopaedia of environmental pollution: Pollution, drugs environment and human health. Commonwealth.
Lua i Stíl Chicago (17ú heag.)
Shukla, S. K., agus P. R. Srivastava. Encyclopaedia of Environmental Pollution: Pollution, Drugs Environment and Human Health. New Delhi: Commonwealth, 1997.
Lua MLA (9ú heag.)
Shukla, S. K., agus P. R. Srivastava. Encyclopaedia of Environmental Pollution: Pollution, Drugs Environment and Human Health. Commonwealth, 1997.
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