APA

Morris W., . (1981). The American Heritage dictionary of the English language. Boston: Houghton Mifflin Co.

Chicago

Morris William, . 1981. The American Heritage dictionary of the English language. Boston: Houghton Mifflin Co.

Harvard

Morris W., . (1981). The American Heritage dictionary of the English language. Boston: Houghton Mifflin Co.

MLA

Morris William, . The American Heritage dictionary of the English language. Boston: Houghton Mifflin Co. 1981.