Bentley, J. H., & Ziegler, H. F. (2008). Traditions & encounters: Abrief global history. Boston: McGraw Hill Higher Education.
Chicago Style aipamenaBentley, Jerry H., và Herbert F. Ziegler. Traditions & Encounters: Abrief Global History. Boston: McGraw Hill Higher Education, 2008.
MLA aipamenaBentley, Jerry H., và Herbert F. Ziegler. Traditions & Encounters: Abrief Global History. Boston: McGraw Hill Higher Education, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.