Yep i'm afraid that most of the books you come across are all "Piano,Guitar,Vocal" wonders. You can trawl through and find some "Bass recording " versions (usually Hal Leonard) where the bass player in the band is popular at the time, but otherwise forget it. A long long long while ago in the murky depths of time (26 years to be exact) I bought a Rush Anthology and couldn't figure out why the bass parts were weird. Finally I understood that they were phrased for Piano left hand and not bass guitar.
Don't bother looking at most TAB sites either they are mostly wrong, or the notes are right but you have to adjust them to a better way of playing (positional) to avoid jumping up and down the neck needlessly. Similarly Youtube is a mixed bag of "watch me Play" videos. Some are excellent but some just demonstrate bad technique.
check out some of these sites for a few good lines to start with;
[url="http://www.thebassment.info/"]http://www.thebassment.info/[/url]
[url="http://www.basslinepublishing.com/"]http://www.basslinepublishing.com/[/url]
[url="http://playbassnow.com/"]http://playbassnow.com/[/url]
You can also download software (the amazing slower downer I Think??) or buy a bass trainer (tascam) to slow down bass tracks without losing pitch and work stuff out yourself. Always trust your own ears.
cheers
Al.