APA (7th ed.) Citation

Kirst, H. H. (1966). The 20th of July. Collins.

Chicago Style (17th ed.) Citation

Kirst, Hans Hellmut. The 20th of July. London: Collins, 1966.

MLA (8th ed.) Citation

Kirst, Hans Hellmut. The 20th of July. Collins, 1966.

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