Vernon's Texas Statutes and Codes Annotated - KFT1230.5.V4 P68 Reference (Evans Library 1st floor)
Texas Practice Series - KFT1280 .T4 (Evans Library 5th floor)
Texas Rules of Form (citation manual) - KF1275 .T4 2006 - Reference (Evans Library 1st floor)
West's Texas Forms - KFT1268 .W47 - Reference (Evans Library 1st floor)
General and Special Laws of the State of Texas - L1800.4 G286 Texas Documents (5th floor Evans Annex)
McDonald & Carlson Texas Civil Practice, Texas Construction Law Manual, Texas Jurisprudence, Texas Practice Series, Texas Residential Construction Law Manual - are all available in Westlaw under Secondary Sources - Texts and Treatises.
National Survey of State Laws - search by title in HeinOnline editions 1-7.