APA (7th ed.) Citation

Dorpalen, A. (1968). Europe in the 20th century : a history / by A. Dorpalen: A history. Macmillan.

Chicago Style (17th ed.) Citation

Dorpalen, A. Europe in the 20th Century : A History / by A. Dorpalen: A History. Macmillan, 1968.

MLA (9th ed.) Citation

Dorpalen, A. Europe in the 20th Century : A History / by A. Dorpalen: A History. Macmillan, 1968.

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