There are no official Riverside discrepancy tables for WISC-IV/WJIII, but there are some state-developed statistical approximations, such as this collection in Kentucky:

http://education.ky.gov/specialed/excep/pages/ld-reference-tables.aspx

Or this simpler one from Cleveland:

http://www.clevelandschools.org/specserv/usb/SLD%20Regression%20Table.pdf

Using the tables can be a bit complicated, if you're not comfortable with regression tables. If you'd like help with them, pm me.

...pronounced like the long vowel and first letter of the alphabet...