Manabu Koga (5 April 1935 – 18 May 1974) was a Japanese freestyle swimmer who competed in the 1956 Summer Olympics.
Source: “Manabu Koga”, English Wikipedia (CC BY-SA 4.0), excerpt
Manabu Koga (5 April 1935 – 18 May 1974) was a Japanese freestyle swimmer who competed in the 1956 Summer Olympics.
Source: “Manabu Koga”, English Wikipedia (CC BY-SA 4.0), excerpt