About: http://webisa.webdatacommons.org/336387701

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	(c) Clark classed as concrete capital not merely the artificial, humanly ???produced means of production,??? but all instruments and materials, including land and all other natural agents.
http://www.w3.org/ns/prov#wasQuotedFrom	libertyfund.org