Dasmahapatra,Gourkrishna. (2013). Basic environmental engineering and elementary biology. Vikas Publishnig House.
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Dyfyniad Arddull Chicago
Dasmahapatra,Gourkrishna. Basic Environmental Engineering and Elementary Biology. Kolkata: Vikas Publishnig House, 2013.
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Dyfyniad MLA
Dasmahapatra,Gourkrishna. Basic Environmental Engineering and Elementary Biology. Vikas Publishnig House, 2013.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.