http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Engineering soils map of Clay County, Indiana
41 leaves : illustrations, tables, maps (folded in pocket) ; 28 cm.
"Project Number C-36-51 B. File number 1-5-2-54."
"Joint Highway Research Project, Engineering Experiment Station, Purdue University in cooperation with Indiana State Highway Commission."
Joint Highway Research Project (Ind.) (Series) ; JHRP-73-26