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School Trip Safety and Urban Play Areas. Volume IV. A Review of Daylight Savings Time Related Student Pedestrian Problems and Countermeasures. Final Report

Charlene Rosen

出版	Federal Highway Administration, Offices of Research & Development, 1975
URL	http://books.google.com.hk/books?id=p3qi8WIqc_gC&hl=&source=gbs_api