About: http://webisa.webdatacommons.org/210709436

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	For those willing to spend the time, effort and money, Mathematica Cookbook is a worthy purchase for the discerning Mathematica user.
http://www.w3.org/ns/prov#wasQuotedFrom	drdobbs.com