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Browsing by Author "Helsing, Guy G."
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Showing results 1 to 2 of 2
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Author(s)
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Marine wood maintenance manual : a guide for proper use of Douglas-fir in marine exposures
Morrell, Jeffrey J., 1955-
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Helsing, Guy G.
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Graham, R. D. (Robert D.)
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Oregon State University. Forest Research Laboratory
Oct-1984
Wood pole maintenance manual : inspection and supplemental treatment of douglas-fir and western redcedar poles
Graham, R. D. (Robert D.)
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Helsing, Guy G.
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Oregon State University. Forest Research Laboratory
Feb-1979
Showing results 1 to 2 of 2