(1998). 1940s. Decades of the 20th Century. Könemann.
Chicago Style (17th ed.) Citation1940s. Decades of the 20th Century. Köln: Könemann, 1998.
MLA (8th ed.) Citation1940s. Decades of the 20th Century. Könemann, 1998.
Warning: These citations may not always be 100% accurate.
