http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
by John E. Wennberg and Alan W. Gittelsohn.
"Volume I of a two-volume report prepared for the Health Resources Administration by the Codman Research Group, under Contract 291-76-0003"--P. iii.
Health planning methods and technology series ; 22