Can anyone recommend a good Japanese Grammar book?

I am studying Japanese and have found a lot of either discrepancy between online sources, or just that some aspects of grammatical points are covered in some, but not in others (so I cannot confirm the accuracy of a source). I was wondering if anyone else could recommend a few grammar books, so I could have a few more actually recommended sources rather than just the ones I happen upon via Google? At the moment the only actual book I am using is A Dictionary of Basic Japanese Grammar. Online sources are: Tae Kim's Grammar Guide, Renshuu.org, and TheJapanesePage.com. Thank you for any help you can give me!