Lerct was first mentioned in the current Star Wars canon in the 2019 reference book Star Wars: The Rise of Skywalker: The Visual Dictionary, written by Pablo Hidalgo. In the Star Wars Legends continuity, the Lerct system was first mentioned in the 2009 reference book The Essential Atlas by Daniel Wallace and Jason Fry.
Lerct was first mentioned in the current Star Wars canon in the 2019 reference book Star Wars: The Rise of Skywalker: The Visual Dictionary, written by Pablo Hidalgo. In the Star Wars Legends continuity, the Lerct system was first mentioned in the 2009 reference book The Essential Atlas by Daniel Wallace and Jason Fry.
- Star Wars: The Rise of Skywalker: The Visual Dictionary
- Star Wars: The Rise and Fall of the Galactic Empire