Guam, L. (2009). Cost Management. Thomson Learning.
Lua i Stíl Chicago (17ú heag.)Guam, Liming. Cost Management. New Delhi: Thomson Learning, 2009.
Lua MLA (9ú heag.)Guam, Liming. Cost Management. Thomson Learning, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.