Reddit mentions of Ashtanga Yoga: The Practice Manual

Traditional Ashtanga practice is not guided, but Mysore-style self-practice. If you have a teacher who teaches Mysore-style, I'd say that's your best bet. That's how I developed a solo practice and I've been practicing on my own for years now.

If not, here are a few resources I find useful. This website has has the first three series with the vinyasas breathing, although not a lot of explanation:

http://www.ashtangayoga.info/practice/asana-vinyasa-series/primary-series-yoga-chikitsa/

There are a number of Ashtanga books. I think I prefer Ashtanga Yoga: The Practice Manual by David Swenson:

http://www.amazon.com/gp/product/B004QPUGRW/ref=as_li_ss_tl?ie=UTF8&tag=wwwonebadseec-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B004QPUGRW

I think John Scott's book is also good. And of course there's always reddit. :-)