APA (7th ed.) Citation

Petersen, E. (1940). 1 Jahr Weltgeschichte.

Chicago Style (17th ed.) Citation

Petersen, Eduard. 1 Jahr Weltgeschichte. Kassel, 1940.

MLA (8th ed.) Citation

Petersen, Eduard. 1 Jahr Weltgeschichte. 1940.

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