Bentley, J. H., & Ziegler, H. F. (2000). Traditions & encounters: A global perspective on the past. McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Bentley, Jerry H., agus Herbert F. Ziegler. Traditions & Encounters: A Global Perspective on the Past. Boston: McGraw Hill, 2000.
Lua MLA (9ú heag.)Bentley, Jerry H., agus Herbert F. Ziegler. Traditions & Encounters: A Global Perspective on the Past. McGraw Hill, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.