APA (7th ed.) Citation

Butler, R. d. (1968). The roots of national socialism, 1783-1933. H. Fertig.

Chicago Style (17th ed.) Citation

Butler, Rohan d'Olier. The Roots of National Socialism, 1783-1933. New York: H. Fertig, 1968.

MLA (9th ed.) Citation

Butler, Rohan d'Olier. The Roots of National Socialism, 1783-1933. H. Fertig, 1968.

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