Lua APA (7ú heag.)

ERRIDGE ANDREW. (2001). BEST PRACTICE PROCUREMENT. GOWER.

Lua i Stíl Chicago (17ú heag.)

ERRIDGE ANDREW. BEST PRACTICE PROCUREMENT. ENGLAND: GOWER, 2001.

Lua MLA (9ú heag.)

ERRIDGE ANDREW. BEST PRACTICE PROCUREMENT. GOWER, 2001.

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