Report of the proceedings of the fourth Entomological Meeting held at Pusa on the 7th to 12th February 1921.

Geahča maid

• Report of the proceedings of the fourth Entomological Meeting held at Pusa on the 7th to 12th February 1921
  Almmustuhtton: (1921)
• Report of the proceedings of the second Entomological Meeting held at Pusa on the 5th to 12th February 1917.
  Dahkki: Fletcher, T. Bainbridge, ed.
  Almmustuhtton: (2023)
• Report of the proceedings of the Fifth Entomological Meeting held at Pusa on the 5th to 10th February 1923.
  Dahkki: Fletcher, T. Bainbridge, ed
  Almmustuhtton: (2023)
• Report of the proceedings of the third Entomological Meeting held at Pusa on the 3rd to 15th February 1919
  Dahkki: Fletcher, T. Bainbridge, ed
  Almmustuhtton: (2023)
• Report of the proceedings of the third Entomological Meeting held at Pusa on the 3rd to 15th February 1919
  Dahkki: Fletcher, T. Bainbridge, ed.
  Almmustuhtton: (2023)