Josh Billings (1972). “Uncle Sam's Uncle Josh: Or, Josh Billings on Practically Everything, Distilled from Josh's Rum and Tansy New England Wit by Donald Day”
"Steve Carell Talks DESPICABLE ME 2, the Evolution of the Character, Being Gru on ELLEN, Lying About His Appearance on THE OFFICE Finale, and More". Interview with Sheila Roberts, collider.com. June 23, 2013.