Walters, R. G. (1951). Retail merchandising (4th ed.). Southwestern Pub. Co.
Lua i Stíl Chicago (17ú heag.)Walters, R. G. Retail Merchandising. 4th ed. Cincinnati: Southwestern Pub. Co, 1951.
Lua MLA (8ú heag.)Walters, R. G. Retail Merchandising. 4th ed. Southwestern Pub. Co, 1951.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.