Lev, B. (2001). Intangibles: Management, measurement, and reporting. Brookings Institution Press.
Lua i Stíl Chicago (17ú heag.)Lev, Baruch. Intangibles: Management, Measurement, and Reporting. Washington, D.C.: Brookings Institution Press, 2001.
Lua MLA (9ú heag.)Lev, Baruch. Intangibles: Management, Measurement, and Reporting. Brookings Institution Press, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.