Stefoff, R. (2018). The environmental movement: Then and now. Capstone Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStefoff, Rebecca. The Environmental Movement: Then and Now. North Mankato, Minnesota: Capstone Press, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStefoff, Rebecca. The Environmental Movement: Then and Now. Capstone Press, 2018.
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