Johnson, S. (2000). Who moved my cheese?: An amazing way to deal with change in your work and in your life. Vermilion.

Johnson, Spencer. Who Moved My Cheese?: An Amazing Way to Deal with Change in Your Work and in Your Life. London: Vermilion, 2000.

Johnson, Spencer. Who Moved My Cheese?: An Amazing Way to Deal with Change in Your Work and in Your Life. Vermilion, 2000.