National Association of Cost Accountants. (1920). Proceedings of the international cost conference.
Lua i Stíl Chicago (17ú heag.)National Association of Cost Accountants. Proceedings of the International Cost Conference. New York, 1920.
Lua MLA (9ú heag.)National Association of Cost Accountants. Proceedings of the International Cost Conference. 1920.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.