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Enforcement Economics in Air Pollution Control
Paul B. DowningWilliam Downing Watson
出版U.S. Environmental Protection Agency, Washington Environmental Research Center, Office of Research and Development, 1973
URLhttp://books.google.com.hk/books?id=M4TD77Dx3JEC&hl=&source=gbs_api
EBookFULL_PUBLIC_DOMAIN
註釋Nine-year-old Michelle describes the joys, loving times, difficulties, and other special situations involved in living with her older sister Amy Emmert, who was born severely disabled with cerebral palsy