^Dorling Kindersley Publishing StaffDC Comics Encyclopedia by Alex Irvine, Dorling Kindersley Publishing Staff and Matthew K. Manning (2016, Hardcover)ISBN 9781465453570 (revised May 2020)
^Matthew K. Manning (2016). DC Comics Encyclopedia All-New Edition: The Definitive Guide to the Characters of the DC Universe, Dk. Amazon. ISBN 9781465453570 (revised Dec 2018)