APA (7th ed.) Citation

Jackson, G. (1999). Civilization and barbarity in the 20th-century Europe. Humanity books.

Chicago Style (17th ed.) Citation

Jackson, Gabriel. Civilization and Barbarity in the 20th-century Europe. New York: Humanity books, 1999.

MLA (8th ed.) Citation

Jackson, Gabriel. Civilization and Barbarity in the 20th-century Europe. Humanity books, 1999.