Manabu Koga (5 April 1935 – 18 May 1974) was a Japanese freestyle swimmer who competed in the 1956 Summer Olympics.[1]

References

  1. ^ Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "Manabu Koga". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on 17 April 2020. Retrieved 1 June 2012.


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