Ryan, J. C., & Roth, R. (1995). Hazardous handouts: Taxpayer subsidies to environmental degradation. Northwest Environment Watch.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRyan, John C., और Rhys Roth. Hazardous Handouts: Taxpayer Subsidies to Environmental Degradation. Seattle, Wash.: Northwest Environment Watch, 1995.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRyan, John C., और Rhys Roth. Hazardous Handouts: Taxpayer Subsidies to Environmental Degradation. Northwest Environment Watch, 1995.
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