Manjunath, D. (2009). Environmentals studies. Dorling Kindersley.
Chicago-čujuhus (17. p.)Manjunath, D.L. Environmentals Studies. New Delhi: Dorling Kindersley, 2009.
MLA-čujuhus (9. p.)Manjunath, D.L. Environmentals Studies. Dorling Kindersley, 2009.
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