Dasmahapatra,Gourkrishna. (2013). Basic environmental engineering and elementary biology. Vikas Publishnig House.
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Chicago-čujuhus (17. p.)
Dasmahapatra,Gourkrishna. Basic Environmental Engineering and Elementary Biology. Kolkata: Vikas Publishnig House, 2013.
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MLA-čujuhus (9. p.)
Dasmahapatra,Gourkrishna. Basic Environmental Engineering and Elementary Biology. Vikas Publishnig House, 2013.
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