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1
Provisional tree seed zones and transfer guidelines for Alaska
[Portland Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1991Format: Government Document Book
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2
Exploitation of environmental heterogeneity by plants : ecophysiological processes above- and belowground
San Diego : Academic Press, 1994Format: Book
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3
The conservation of plant biodiversity
Cambridge ; New York : Cambridge University Press, 1995Format: Book
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