http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
preliminary classification of radar precipitation echo patterns associated with midwestern tornadoes
iii, 20 leaves : illustrations, tables ; 28 cm.
Project 169 is Radar Tornado Observations.
Sponsored by the U.S. Weather Bureau under Contract Cwb-9322.
Project 169 (Texas A & M University. Department of Oceanography and Meteorology) Reference ; no. 58-11F