Isidro, M. C. (1999). The effects of spare bowling practice schedules on duckpin bowling performance.
Čikaški stil citiranja (17. izdanje)Isidro, Mario C. The Effects of Spare Bowling Practice Schedules on Duckpin Bowling Performance. 1999.
MLA način citiranja (9. izdanje)Isidro, Mario C. The Effects of Spare Bowling Practice Schedules on Duckpin Bowling Performance. 1999.
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