very short copyright; is this OK?

[David Coe <david.coe@someotherplace.org>]

I wrote to the author of gnus-bbbd.el to advise him that we had
dropped it from distribution (some time ago) because it contained
no copyright.  He added the following two lines; is willing to
add more if we desire.

Is this sufficient? 

;;; Copyright (c) 1995 by Brian Edmonds, feel free to use, modify and
;;; redistribute under your choice of the GPL, Artistic or BSD licenses.


Thanks