Philippine Wood Pole Maintenance Anual: A Guide to the Specification, Inspection, and Maintenance of Wood Poles. A collaborative research project between the Philippi- ne Forest Products Research and Development Institute and Oregon State University. Special Publication 23
Morrell Jeffrey J.
Giron M.Y.
Corvallis : Oregon State University, Forest Research Laboratory , 1992. - 29 s.: 27 obr., 2 tab.
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