Wall, B. R. (1972). Log production in Washington and Oregon: An historical perspective. Pacific Northwest Forest and Range Experiment Station.
Chicago-Zitierstil (17. Ausg.)Wall, Brian R. Log Production in Washington and Oregon: An Historical Perspective. Portland, Or: Pacific Northwest Forest and Range Experiment Station, 1972.
MLA-Zitierstil (9. Ausg.)Wall, Brian R. Log Production in Washington and Oregon: An Historical Perspective. Pacific Northwest Forest and Range Experiment Station, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.