Does anyone know where I might be able to pick up a cheap version of Octavia Butler’s third novel, Survivor?

It hasn’t been in print since the eighties since, from what I understand, Butler didn’t like the book, and it didn’t have a lot to do with her series it was set in, but I’m tracking down the stuff I haven’t read, and second hand copies of it are going for seventy five bucks and ridiculous shit like that. I’m doing a bit of poking round on the net, but I thought I’d ask in general just in case someone’s seen it cheap round; not that I’m against paying such costs in the name of research, mind you, I’m just exhausting my other choices first. I haven’t tried Sydney library databases yet, mostly because I think that will be a long shot, but would there be, by any chance somewhere, a cheap second hand copy or a file of it online that I could get pointed too in the name of research?

(Also, it seems while removing spam off the main blog, I have accidentally deleted a bunch of comments. My apologies if yours is gone now–it wasn’t intentional.)