What do I do if I can’t find a book’s publication information on the title page or copyright page?
In MLA style, the first place to look for publication information for a book is the book’s title page. Additional details can be found on the copyright page. But for some books, publication information is located in an unexpected place, so you may have to do some sleuthing.
For example, in a 360-page book called Wall Writers, the name of the publisher and the publication date are located on neither the title page nor the copyright page. Instead, the information is located on page 354.
Here we learn that the book was published in 2016 by Gingko Press. Your entry would thus look as follows:
Gastman, Roger, compiler. Wall Writers: Graffiti in Its Innocence. With Caleb Neelson and Chris Pape, Gingko Press, 2016.
For more details about how to find publication information for books, as well as examples, see the ninth edition of the MLA Handbook.