Permission to use screenshot of Wikibooks

Hello,

I have written a chapter, Why Write With Wikis, which is due to be published
in a book next year. I would like to include a screenshot of Wikibooks,
specifically of http://en.wikibooks.org/wiki/Creative_Writing, as an
example.

I'd appreciate it if someone on this mailing list could suggest how I might
get permission (or at least some acknowledgement) to include the screenshot
in the book chapter. Thank you for your time and effort!


Regards,
Ashley Tan, Ph.D.
My calendar: http://tr.im/EbDQ
http://ashleytan.wordpress.com