National Industrial Conference Board. (1927). The cost of living in foreign countries.
Lua i Stíl Chicago (17ú heag.)National Industrial Conference Board. The Cost of Living in Foreign Countries. New York, 1927.
Lua MLA (8ú heag.)National Industrial Conference Board. The Cost of Living in Foreign Countries. 1927.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.