Cox, K. (1973). Experimentation for marketing decision. National Textbook Ltd.
Lua i Stíl Chicago (17ú heag.)Cox, Keith. Experimentation for Marketing Decision. NULL: National Textbook Ltd, 1973.
Lua MLA (9ú heag.)Cox, Keith. Experimentation for Marketing Decision. National Textbook Ltd, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.