Photo Series for Quantifying Forest Residues in the Coastal Douglas-fir--hemlock Type, Coastal Douglas-fir--hardwood Type / Wayne G. Maxwell, Franklin R. Ward.Wayne G. Maxwell1976
Predictions of Fire Behavior and Resistance to Control for Use with Photo Series for the Douglas-fir--hemlock Type and the Coastal Douglas-fir--hardwood Type / David V. Sandberg, Franklin R. Ward.David. Sandberg1981