http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a guide to teaching Earth system science
National Aeronautics and Space Administration.
37 pages, 8 unnumbered pages : illustrations, maps
Microfiche. Lanham, MD : Bernan, 1999. 1 microfiche. (Kraus curriculum development library ; SCI K-198).
Kraus Curriculum Development library ; SCI K-198