APA (7th ed.) Citation

Heiden, K. (1971). A history of national socialism / by K. Heiden. Octagon Books.

Chicago Style (17th ed.) Citation

Heiden, K. A History of National Socialism / by K. Heiden. Octagon Books, 1971.

MLA (9th ed.) Citation

Heiden, K. A History of National Socialism / by K. Heiden. Octagon Books, 1971.

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