McAvennie, Michael; Dolan, Hannah, ed. (2010). «1970s». DC Comics Year By Year A Visual Chronicle. Dorling Kindersley. p. 146. ISBN978-0-7566-6742-9. «'Swamp Thing' was the name of Len Wein and Bernie Wrightson's turn-of-the-century tale, and its popularity with readers led a modernized version of the character into its own series a year later.»
