A book I'd recommend is Abe & Malka's 100 Guitar Accompaniments. The entire book is about finger-picking patterns.

I picked up my copy in a second hand bookstore, but I see that it's readily available from Amazon and other retailers for about $22 US. Reviewer ratings appear to be high. It provides the patterns in standard notation and guitar tablature. I believe the current editions are sold with a CD.

I found it particularly valuable because it gives me ideas for adapting their patterns to my own style (and musical limitations).