Bruce, D., & Cowlin, R. W. (1968). Timber measurement problems in the Douglas-fir region of Washington and Oregon. Pacific Northwest Forest and Range Experiment Station.
Цитирование в стиле Чикаго (17-е изд.)Bruce, David, и Robert W. Cowlin. Timber Measurement Problems in the Douglas-fir Region of Washington and Oregon. [Portland, Or.]: Pacific Northwest Forest and Range Experiment Station, 1968.
Цитирование MLA (8-е изд.)Bruce, David, и Robert W. Cowlin. Timber Measurement Problems in the Douglas-fir Region of Washington and Oregon. Pacific Northwest Forest and Range Experiment Station, 1968.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.