APA (7th ed.) Citation

Yapp, N. (2001). Decades of the 20th century. Könemann.

Chicago Style (17th ed.) Citation

Yapp, Nick. Decades of the 20th Century. Königswinter: Könemann, 2001.

MLA (9th ed.) Citation

Yapp, Nick. Decades of the 20th Century. Könemann, 2001.

Warning: These citations may not always be 100% accurate.