<http://webisa.webdatacommons.org/423267213>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/423267213>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<thomasnet.com> .
<http://webisa.webdatacommons.org/prov/67883120>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/423267213> .
<http://webisa.webdatacommons.org/423267213>	<http://www.w3.org/ns/prov#value>	"The guide first introduces magmeters, summarizing such topics as principles of operation, construction, magnetic fields, maintenance, transmitters, installation, and calibration." .