Hi, I'm just about finished with Russian for Beginners (as I garner, it covers about the same things as New Penguin) and was looking at where to go from here. I have some titles that look good, but I'm wondering if it's redundant to have all them (in that they'd all cover the same things.) Anyone have information?

Schaum's Outline of Russian Grammar

Brian Kemple. Essential Russian Grammar

Derek Offord. Using Russian: A Guide to Contemporary Usage

Terence Wade: A Comprehensive Russian Grammar

B.O. Unbegaun. Russian Grammar

Borras and Christian. Russian Syntax

William Mahota. Russian Motion Verbs for Intermediate Students

Nicholas Brown. Russian Learner's Dictionary

(Don't know). Roots of the Russian Language