Yarding delays for advanced logging systems by Dykstra, Dennis P.

FAO model code of forest harvesting practice by Dykstra, Dennis P.

Forest codes of practice: contributing to environmentally sound forest operations : proceedings

Other Authors: “…Dykstra, Dennis P., ed…”

The global forest sector : an analytical perspective

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Logging for the ark : improving the conservation value of production forests in South East Asia by Dennis, Rona

Other Authors: “…Dykstra, Dennis…”