APA Style

Gladwell, M. (2013). David and Goliath : underdogs, misfits, and the art of battling giants (1st ed.). London: Pinguin Books.

MLA Style

Gladwell, Malcolm. "David and Goliath : underdogs, misfits, and the art of battling giants". 1st ed. London: Pinguin Books, 2013. Text.