The Hulton Getty Picture Collection 1940s : Decades of the 20th Century.

MLA

Yapp, Nick, and Detlev Schaper. The Hulton Getty Picture Collection 1940s : Decades of the 20th Century. Köln: Könneman, 1998.

APA

Yapp, N., & Schaper, D. (1998). The Hulton Getty Picture Collection 1940s : Decades of the 20th Century. Köln: Könneman.

Chicago

Yapp, Nick, and Detlev Schaper. The Hulton Getty Picture Collection 1940s: Decades of the 20th Century. Köln: Könneman, 1998.