Lua APA (7ú heag.)

COOK SARAH. (1997). CUSTOMER CARE (2ND.). KOGAN PAGE.

Lua i Stíl Chicago (17ú heag.)

COOK SARAH. CUSTOMER CARE. 2ND. LONDON: KOGAN PAGE, 1997.

Lua MLA (9ú heag.)

COOK SARAH. CUSTOMER CARE. 2ND. KOGAN PAGE, 1997.

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