Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Graphic novel:

"

The first six issues of writer-artist Jack Katz's 1974 Comics and Comix Co. series The First Kingdom were collected as a trade paperback (Pocket Books, March 1978),[4] which described itself as "the first graphic novel". Issues of the comic had described themselves as "graphic prose", or simply as a novel.[citation needed]