Heinze-Fry, J., & Miller, G. T. (1997). Critical thinking and the environment: A beginner's guide for environmental science. Wadsworth.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHeinze-Fry, Jane, और G. Tyler Miller. Critical Thinking and the Environment: A Beginner's Guide for Environmental Science. Belmont: Wadsworth, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHeinze-Fry, Jane, और G. Tyler Miller. Critical Thinking and the Environment: A Beginner's Guide for Environmental Science. Wadsworth, 1997.
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