Trivedi P R. (1998). Encyclopaedia of environment,pollution,planning and conservation,Vol.1. APH.
Chicago Edition CitationTrivedi P R. Encyclopaedia of Environment,pollution,planning and Conservation,Vol.1. New Delhi: APH, 1998.
Cita MLATrivedi P R. Encyclopaedia of Environment,pollution,planning and Conservation,Vol.1. APH, 1998.
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