Pennsylvania's Forests, 2009
George L. McCaskill,William H. McWilliams, Carol A. Alerich,Brett J. Butler,Susan J. Crocker,Grant M. Domke, Doug Griffith,Cassandra M. Kurtz,Shawn Lehman,Tonya W. Lister,Randall S. Morin,W. Keith Moser, Paul Roth,Rachel Riemann,James A. Westfall mag(2013)
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growth,sampling error,volume,inventory,sample design
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