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 Metropolis (1927 film):

"

A note in one edition of Harbou's novel says that the story does not take place at any particular place or time, in the past or the future. Meanwhile, the 1963 Ace Books edition, which is a reprint of the 1927 English edition, specifies the setting as "The World of 2026 A.D.".[citation needed]