APA (7th ed.) Citation

Adams, S. (1996). DK visual timeline of the 20th century (1st American ed.). DK Publishing.

Chicago Style (17th ed.) Citation

Adams, Simon. DK Visual Timeline of the 20th Century. 1st American ed. New York: DK Publishing, 1996.

MLA (9th ed.) Citation

Adams, Simon. DK Visual Timeline of the 20th Century. 1st American ed. DK Publishing, 1996.