http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
8 volumes : color illustrations ; 29 cm.
v. 1. Astronomy -- v. 2. Physics -- v. 3. Chemistry -- v. 4. The planet earth -- v. 5. The plant world -- v. 6. The animal world -- v. 7. The human body -- v. 8. Men and women of science. Index.