Anil Tyagi. (2009). Trueman's UGC NET/SLET Environmental Science. Danika publishing house.
Chicago Edition CitationAnil Tyagi. Trueman's UGC NET/SLET Environmental Science. New Delhi: Danika publishing house, 2009.
Deismireacht MLAAnil Tyagi. Trueman's UGC NET/SLET Environmental Science. Danika publishing house, 2009.
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