About: http://webisa.webdatacommons.org/72340928

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	The 1940 sample was a representative cross-section of the entire population.
http://www.w3.org/ns/prov#wasQuotedFrom	census.gov