Dykstra, D. P. (1975). Production rates and costs for cable, balloon, and helicopter yarding systems in old-growth Douglas-fir. Forest Research Laboratory, School of Forestry, Oregon State Univ.
Chicago-Zitierstil (17. Ausg.)Dykstra, Dennis P. Production Rates and Costs for Cable, Balloon, and Helicopter Yarding Systems in Old-growth Douglas-fir. Corvallis, Or: Forest Research Laboratory, School of Forestry, Oregon State Univ, 1975.
MLA-Zitierstil (9. Ausg.)Dykstra, Dennis P. Production Rates and Costs for Cable, Balloon, and Helicopter Yarding Systems in Old-growth Douglas-fir. Forest Research Laboratory, School of Forestry, Oregon State Univ, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.