APA (7th ed.) Citation

Orr, W. J. (1980). East Prussia and the revolution of 1848.

Chicago Style (17th ed.) Citation

Orr, William J. East Prussia and the Revolution of 1848. 1980.

MLA (8th ed.) Citation

Orr, William J. East Prussia and the Revolution of 1848. 1980.

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