Stites, R. Circles on a square: The heart of St. Petersburg culture in early nineteenth century / Richard Stites. Picturing Russia : explorations in visual culture.(2008).
Lua i Stíl Chicago (17ú heag.)Stites, Richard. "Circles on a Square: The Heart of St. Petersburg Culture in Early Nineteenth Century / Richard Stites." Picturing Russia : Explorations in Visual Culture.(2008) .
Lua MLA (8ú heag.)Stites, Richard. "Circles on a Square: The Heart of St. Petersburg Culture in Early Nineteenth Century / Richard Stites." Picturing Russia : Explorations in Visual Culture.(2008), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.