APA (7th ed.) Citation

Barrow, J. D. (2008). 100 essential things you didn't know you didn't know / John D. Barrow. Bodley Head.

Chicago Style (17th ed.) Citation

Barrow, John D. 100 Essential Things You Didn't Know You Didn't Know / John D. Barrow. London: Bodley Head, 2008.

MLA (9th ed.) Citation

Barrow, John D. 100 Essential Things You Didn't Know You Didn't Know / John D. Barrow. Bodley Head, 2008.

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