Lua APA (7ú heag.)

COREY E R. (1985). PROBLEMS IN MARKETING (6TH.). MCGRAW-HILL.

Lua i Stíl Chicago (17ú heag.)

COREY E R. PROBLEMS IN MARKETING. 6TH. NEW YORK: MCGRAW-HILL, 1985.

Lua MLA (9ú heag.)

COREY E R. PROBLEMS IN MARKETING. 6TH. MCGRAW-HILL, 1985.

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