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Schoolhouse Sanitation

Arthur William DunnEdward Joshua WardHarold Waldstein FoghtHarry Sanger RichardsLuella Angelina PalmerNational Education Association of the United States. Commission on the Reorganization of Secondary Education. Committee on Social StudiesTheodore Leander MacDowellUnited States. Bureau of EducationWilliam Adelbert Cook

其他書名	A Study of the Laws and Regulations Governing the Hygiene and Sanitation of Schoolhouses
出版	U.S. Government Printing Office, 1915
URL	http://books.google.com.hk/books?id=hhc_AQAAMAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN