Houghton Mifflin Company. (1987). The American heritage illustrated encyclopedic dictionary. Houghton Mifflin.
Citazione stile Chigago Style (17a edizione)Houghton Mifflin Company. The American Heritage Illustrated Encyclopedic Dictionary. Boston: Houghton Mifflin, 1987.
Citatione MLA (9a ed.)Houghton Mifflin Company. The American Heritage Illustrated Encyclopedic Dictionary. Houghton Mifflin, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.