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Medical indoor gymnastics, or, A system of hygienic exercises for home use to be practiced anywhere without apparatus or assistance by young and old of either sex for the preservation of health and general activity

Daniel Gottlieb Moritz Schreber

出版	G.E. Stechert, 1899
URL	http://books.google.com.hk/books?id=vDxDmqBbwo0C&hl=&source=gbs_api