Lua APA (7ú heag.)

Northern Ireland Economic Council. (1990). Retailing in Northern Ireland. Northern Ireland Economic Development Office.

Lua i Stíl Chicago (17ú heag.)

Northern Ireland Economic Council. Retailing in Northern Ireland. Belfast: Northern Ireland Economic Development Office, 1990.

Lua MLA (8ú heag.)

Northern Ireland Economic Council. Retailing in Northern Ireland. Northern Ireland Economic Development Office, 1990.

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