Khopkar, S. M. (2007). Environmental Pollution Monitoring and Control (2nd ed.). New Age International (P) Limited, Publishers.
Citace podle Chicago (17th ed.)Khopkar, S. M. Environmental Pollution Monitoring and Control. 2nd ed. New Delhi: New Age International (P) Limited, Publishers, 2007.
Citace podle MLA (9th ed.)Khopkar, S. M. Environmental Pollution Monitoring and Control. 2nd ed. New Age International (P) Limited, Publishers, 2007.
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