KUHRE, W. L. (1995). Iso 14001 Certification Environmental Management Preparing Effective Environmental Management Systems W. Lee. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)KUHRE, W. Lee. Iso 14001 Certification Environmental Management Preparing Effective Environmental Management Systems W. Lee. Prentice-Hall, 1995.
Lua MLA (8ú heag.)KUHRE, W. Lee. Iso 14001 Certification Environmental Management Preparing Effective Environmental Management Systems W. Lee. Prentice-Hall, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.