APA (7th ed.) Citation

Hill, C. (1975). The world turned upside down: Radical ideas during the English revolution. Penguin Books.

Chicago Style (17th ed.) Citation

Hill, Christopher. The World Turned Upside Down: Radical Ideas During the English Revolution. Harmondsworth [u.a.]: Penguin Books, 1975.

MLA (8th ed.) Citation

Hill, Christopher. The World Turned Upside Down: Radical Ideas During the English Revolution. Penguin Books, 1975.

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