Open air crusaders; a report of the Elizabeth McCormick open air school, together with a general account of open air school work in Chicago and a chapter on school ventilation
Автор: Kingsley, Sherman Colver, 1866- ed,Elizabeth McCormick Open Air School, Chicago, 125 стр., издатель: "Книга по Требованию", ISBN: 978-5-8801-3277-5


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