Summers, D., & Davison-Aitkins, T. (2007). The sports book: The games, the rules, the tactics, the techniques (1st American ed.). DK Pub..
Lua i Stíl Chicago (17ú heag.)Summers, David, agus Tarda Davison-Aitkins. The Sports Book: The Games, the Rules, the Tactics, the Techniques. 1st American ed. London ; New York: DK Pub., 2007.
Lua MLA (8ú heag.)Summers, David, agus Tarda Davison-Aitkins. The Sports Book: The Games, the Rules, the Tactics, the Techniques. 1st American ed. DK Pub., 2007.
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