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Lua i Stíl Chicago (17ú heag.)Virtanen, Veli Seppo. Tonsillectomy as Treatment of Acute Peritonsillitis: With Clinical and Statistical Observations. Helsinki, 1949.
Lua MLA (8ú heag.)Virtanen, Veli Seppo. Tonsillectomy as Treatment of Acute Peritonsillitis: With Clinical and Statistical Observations. 1949.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.