APA (7th ed.) Citation

Greenfield, S. (2009). ID: The quest for meaning in the 21st century. Sceptre.

Chicago Style (17th ed.) Citation

Greenfield, Susan. ID: The Quest for Meaning in the 21st Century. London: Sceptre, 2009.

MLA (9th ed.) Citation

Greenfield, Susan. ID: The Quest for Meaning in the 21st Century. Sceptre, 2009.