"Read the Fergie interview transcript... on holding grudges, listening to American Civil War tapes on the way to work, handling Man United's millionaires and why he thinks Pele is THE all-time No 1". Interview with Charlie Rose, www.dailymail.co.uk. October 2, 2013.
"Global Catastrophic Risks". Chapter: "Cognitive Biases Potentially Affecting Judgment of Global Risks". Book edited by Nick Bostrom and Milan M. Cirkovic, 2008.
Harvey Mackay (1996). “Swim with the Sharks Without Being Eaten Alive: Outsell, Outmanage, Outmotivate, & Outnegotiate Your Competition”, Ballantine Books