APA (7th ed.) Citation

Grayling, A. C. (2010). Ideas that matter: The concepts that shape the 21st century. Basic Books.

Chicago Style (17th ed.) Citation

Grayling, A. C. Ideas That Matter: The Concepts That Shape the 21st Century. New York: Basic Books, 2010.

MLA (9th ed.) Citation

Grayling, A. C. Ideas That Matter: The Concepts That Shape the 21st Century. Basic Books, 2010.

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