http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Cisco Certified Design Associate exam certification guide
xxv, 674 pages : illustrations ; 25 cm. + 1 CD-ROM (4 3/4 in.)
"The official study guide for DCN exam #640-441"--Cover.