I've bought a few books from Amazon.UK, sometimes specifically because I wanted the British edition. It's a little more expensive, but if I can't get the book any other way, it's worth it. (And, in fact, going through Amazon.UK for one of the things I wanted ended up being cheaper than the British edition available used on the American version.)
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Gillian
"Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"
"You can't erase icing."
"I can't believe it doesn't work! I found it on the internet, man!"