20160731 frey50
Statistical Abstract of the United States: 2011 The National Data Book. - Claitors Pub Div 2010. - 1010 p. cm.
9781598045802 1598045806
317.3 Sta 4
Statistical Abstract of the United States: 2011 The National Data Book. - Claitors Pub Div 2010. - 1010 p. cm.
9781598045802 1598045806
317.3 Sta 4