Heckmann, P. (2017). Historical development of sport in Germany in the 20th century: The formation of physical culture.
Chicago-viite (17. p.)Heckmann, Philip. Historical Development of Sport in Germany in the 20th Century: The Formation of Physical Culture. 2017.
MLA-viite (9. p.)Heckmann, Philip. Historical Development of Sport in Germany in the 20th Century: The Formation of Physical Culture. 2017.
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