Watkins, C. (2000). The American heritage dictionary of Indo-European roots (2nd ed.). Houghton Mifflin.
Chicago Style (17th ed.) CitationWatkins, Calvert. The American Heritage Dictionary of Indo-European Roots. 2nd ed. Boston: Houghton Mifflin, 2000.
MLA (9th ed.) CitationWatkins, Calvert. The American Heritage Dictionary of Indo-European Roots. 2nd ed. Houghton Mifflin, 2000.
Warning: These citations may not always be 100% accurate.