In the 2007-2018 London Diving Chamber Lectures, Monty Halls spoke on five separate occasions, in 2007, 2008, 2010, 2012, and 2017.
In the 2007-2018 London Diving Chamber Lectures, Monty Halls spoke on five separate occasions, in 2007, 2008, 2010, 2012, and 2017.