Gaya APA

Butler-Bowdon, T. (2007). 50 Psychology Classics : Who we are, How we think, What we Do- Insight and Inspiration from 50 Keys Books . London: Nicholas Brealey Publishing.

Gaya MLA

Butler-Bowdon, Tom. "50 Psychology Classics : Who we are, How we think, What we Do- Insight and Inspiration from 50 Keys Books". London: Nicholas Brealey Publishing, 2007. Text.