Kata Kunci Pencarian:
- Daftar klub sepak bola divisi tertinggi di negara anggota UEFA
- 1939–40 BSC Young Boys season
- BSC Young Boys
- 1938–39 BSC Young Boys season
- 1940–41 BSC Young Boys season
- 1939–40 Nationalliga
- Swiss Challenge League
- Servette FC
- History of FC Basel (1918–1939)
- FC Basel
- August Ibach
