A B C D E F G H I J-K L M N O P Q-R S T U V W-Y 0-9
close this section of the libraryA photo guide to the patterns of discoloration and decay in living northern hardwood trees(1)
View the documentA photo guide to the patterns of discoloration and decay in living northern hardwood trees / by Alex L. Shigo and Edwin vH. Larson. Shigo, Alex L., 1930- cn Upper Darby, Pa. : Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1969.