About: http://webisa.webdatacommons.org/8151013

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 unit also has custody of supplementary documentation related to the 1980 Census, such as the Bureau of the Census' Users Guide: Part C. Index to Summary Tape Files 1-4 (PHC80-R1-C, issued September 1983, 145 pages).
http://www.w3.org/ns/prov#wasQuotedFrom	archives.gov