APA (7th ed.) Zitazioa
Shukla, S. K., & Srivastava, P. R. (1997). Encyclopaedia of environmental Pollution: Environmental water pollution. Commonwealth.
Chicago Style (17th ed.) Zitazioa
Shukla, S. K., eta P. R. Srivastava. Encyclopaedia of Environmental Pollution: Environmental Water Pollution. New Delhi: Commonwealth, 1997.
MLA (9th ed.) Zitazioa
Shukla, S. K., eta P. R. Srivastava. Encyclopaedia of Environmental Pollution: Environmental Water Pollution. Commonwealth, 1997.
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