http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
3 volumes : illustrations (some color) ; 28 cm. + teacher's ed. (3 volumes : illustrations (some color) ; 29 cm.
Includes Texas Essential Knowledge and Skills.
Texas state adopted textbooks; 2007-2008.