Scottish Journal of Political Economy | It has been estimated that there were 22 million soccer players in the world in the early 1980s, and that number is increasing |
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Ingle, Sean; Glendenning, Barry 9 October 2003 | Austin, Merrill 10 July 2007 |
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For more information and source,.
For more information and source, | Illustrated History Of Football Reed International Books Limited 1996 |
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Taylor, Louise 29 May 2008 | Embassy of the United States in London |
The Sports Process: A Comparative and Developmental Approach.
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