Butler-Bowdon, T. (2008). 50 Self-help classics: 50 inspirational books to transform your life from timeless sages to contemporary gurus.
Chicago-stil citatButler-Bowdon, Tom. 50 Self-help Classics: 50 Inspirational Books to Transform Your Life from Timeless Sages to Contemporary Gurus. Nicholas Brealey Publishing, London, 2008.
MLA-referensButler-Bowdon, Tom. 50 Self-help Classics: 50 Inspirational Books to Transform Your Life from Timeless Sages to Contemporary Gurus. 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.