APA (7th ed.) Citation

Roon, G. v. (1997). Die "Operation Walküre". Das Dritte Reich.

Chicago Style (17th ed.) Citation

Roon, Ger van. "Die "Operation Walküre"." Das Dritte Reich 1997.

MLA (8th ed.) Citation

Roon, Ger van. "Die "Operation Walküre"." Das Dritte Reich, 1997.

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