Butler-Bowdon, T. (2004). 50 success classics: Winning wisdom for work and life from 50 landmark books. Nicholas Brealey Pub..
Chicago (17e ed.) BronvermeldingButler-Bowdon, Tom. 50 Success Classics: Winning Wisdom for Work and Life from 50 Landmark Books. London ; Yarmouth, Me.: Nicholas Brealey Pub., 2004.
MLA (8e ed.) BronvermeldingButler-Bowdon, Tom. 50 Success Classics: Winning Wisdom for Work and Life from 50 Landmark Books. Nicholas Brealey Pub., 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.