APA (7th ed.) Citation

Riste, O. (1984). The German occupation of Norway in World War II.

Chicago Style (17th ed.) Citation

Riste, Olav. The German Occupation of Norway in World War II. 1984.

MLA (9th ed.) Citation

Riste, Olav. The German Occupation of Norway in World War II. 1984.

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