Chiras, D. D. (2001). Environmental science: Creating a sustainable future (6th ed.). Jones and Bartlett Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChiras, Daniel D. Environmental Science: Creating a Sustainable Future. 6th ed. Sudbury, MA: Jones and Bartlett Publishers, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रChiras, Daniel D. Environmental Science: Creating a Sustainable Future. 6th ed. Jones and Bartlett Publishers, 2001.
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