Não informado. (1930). Advertising Age: International newspaper of marketing. Crain Communications.
Lua i Stíl Chicago (17ú heag.)Não informado. Advertising Age: International Newspaper of Marketing. Chicago, Ill: Crain Communications, 1930.
Lua MLA (8ú heag.)Não informado. Advertising Age: International Newspaper of Marketing. Crain Communications, 1930.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.