Virtanen, V. S. (1949). Tonsillectomy as treatment of acute peritonsillitis: With clinical and statistical observations.
Chicago-referens (17:e uppl.)Virtanen, Veli Seppo. Tonsillectomy as Treatment of Acute Peritonsillitis: With Clinical and Statistical Observations. Helsinki, 1949.
MLA-referens (8:e uppl.)Virtanen, Veli Seppo. Tonsillectomy as Treatment of Acute Peritonsillitis: With Clinical and Statistical Observations. 1949.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.