@online {342,
	title = {Minerals Yearbook for Massachusetts},
	publisher = {USGS},
	keywords = {$\#$Collecting, $\#$EducationalResources, $\#$MassGeology, $\#$MineralDatabase, $\#$MineralResources, $\#$Minerals, industrial, minerals, quarries},
	url = {http://minerals.usgs.gov/minerals/pubs/state/ma.html}
}
