APA (7e ed.) Bronvermelding

(1994). The 20th century: A brief global history (4th ed.). McGraw-Hill, Inc.

Chicago (17e ed.) Bronvermelding

The 20th Century: A Brief Global History. 4th ed. New York: McGraw-Hill, Inc, 1994.

MLA (9e ed.) Bronvermelding

The 20th Century: A Brief Global History. 4th ed. McGraw-Hill, Inc, 1994.