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The Tourist and Outdoor Recreation Climate of Ontario: Objectives and definitions of seasons

R. B. CroweG. A. McKayW. M. Baker

出版	Department of the Environment, Atmospheric Environment Service, Meteorological Application Branch, 1973
URL	http://books.google.com.hk/books?id=_jQOHoKTc34C&hl=&source=gbs_api