Rock excavation
broader: Excavation
in scheme: lcsh
member: collection SubdivideGeographicalIndirect
member: collection LCSH General
member: collection LCSHAuthorizedHeadings
notation: TA740-TA747
type: Concept
modified: 1987-11-05T16:55:15
created: 1986-02-11T00:00:00

Excavation
notation: TH5101
notation: TA730-TA748
type: Concept