Lua APA (7ú heag.)

(1996). Comparative City Statistics: Major Cities of Scandinavia, Tallinn and St. Petersburg.

Lua i Stíl Chicago (17ú heag.)

Comparative City Statistics: Major Cities of Scandinavia, Tallinn and St. Petersburg. Helsinki, 1996.

Lua MLA (8ú heag.)

Comparative City Statistics: Major Cities of Scandinavia, Tallinn and St. Petersburg. 1996.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.