Rao, C. (1991). Environmental pollution control and engineering. New Age International.
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Dyfyniad Arddull Chicago
Rao, C.S. Environmental Pollution Control and Engineering. New Delhi: New Age International, 1991.
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Dyfyniad MLA
Rao, C.S. Environmental Pollution Control and Engineering. New Age International, 1991.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.