About: http://webisa.webdatacommons.org/414502043

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	Its relatively modest revenue is generated solely through member dues and subscriptions, donations and sales of its books, photos and other services.
http://www.w3.org/ns/prov#wasQuotedFrom	usni.org