@Map {360,
	title = {Bedrock geologic map of the Ayer 7.5{\textquoteright} quadrangle, Worcester and Middlesex Counties, Massachusetts},
	publisher = {Massachusetts Geological Survey},
	edition = {15-01},
	abstract = {<p>Editing and review are still underway. \&nbsp;This map should be available in winter 2015/2016</p>},
	keywords = {Ayer, ayer granite, Ayer Granodiorite, Ayer Quadrangle, Berwick, Campbell Hill Fault, chelmsford granite, Clinton Newbury Fault, Devens, Harvard Conglomerate, merrimack, Oakdale formation, pin hill, Shepley{\textquoteright}s Hill, Shirley Fault, tadmuck brook schist, Worcester Formation},
	author = {Kopera J.P.}
}
@Map {359,
	title = {Bedrock geologic map of the Ayer 7.5{\textquoteright} quadrangle, Worcester and Middlesex Counties, Massachusetts (2015)},
	publisher = {Massachusetts Geological Survey},
	edition = {15-01},
	abstract = {<p>Editing and review are still underway. \&nbsp;This map should be available in winter 2015/2016</p>},
	keywords = {Ayer, ayer granite, Ayer Granodiorite, Ayer Quadrangle, Berwick, Campbell Hill Fault, chelmsford granite, Clinton Newbury Fault, Devens, Harvard Conglomerate, merrimack, Oakdale formation, pin hill, Shepley{\textquoteright}s Hill, Shirley Fault, tadmuck brook schist, Worcester Formation},
	author = {Joseph P Kopera}
}
