APA (7th ed.) Citation

(2006). The American Heritage dictionary of the English language (4th ed., New updated ed.). Houghton Mifflin.

Chicago Style (17th ed.) Citation

The American Heritage Dictionary of the English Language. 4th ed., New updated ed. Boston: Houghton Mifflin, 2006.

MLA (9th ed.) Citation

The American Heritage Dictionary of the English Language. 4th ed., New updated ed. Houghton Mifflin, 2006.