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  Pines of Silvicultural Importance - Google Books

  http://books.google.de/books?id=DB8dCbmgQ74C&pg=PT288&dq=pinus+nigra&lr=&as_brr=3&cd=30#v=onepage&q=pinus%20nigra&f=false

  The genus Pinus is of great ecological and commercial importance and it is notable for its vast geographic range and the sheer area that its various species occupy. Its natural range is almost exclusively in the northern hemisphere, where it often forms…

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  Pines of Silvicultural Importance - Google Books

  http://books.google.de/books?id=DB8dCbmgQ74C&printsec=frontcover&dq=Pines+of+silvicultural+importance&lr=&as_brr=3&cd=1#v=onepag

  The genus Pinus is of great ecological and commercial importance and it is notable for its vast geographic range and the sheer area that its various species occupy. Its natural range is almost exclusively in the northern hemisphere, where it often forms…

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  Pines of Silvicultural Importance - Google Books

  https://books.google.de/books?id=DB8dCbmgQ74C&pg=PA9#v=onepage

  The genus Pinus is of great ecological and commercial importance and it is notable for its vast geographic range and the sheer area that its various species occupy. Its natural range is almost exclusively in the northern hemisphere, where it often forms…

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  Pines of Silvicultural Importance - Google Books

  http://books.google.de/books?id=DB8dCbmgQ74C&pg=PA414&dq=%22Pinus+sibirica

  The genus Pinus is of great ecological and commercial importance and it is notable for its vast geographic range and the sheer area that its various species occupy. Its natural range is almost exclusively in the northern hemisphere, where it often forms…

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