Black walnut on Kansas strip mine spoils
Shigo, A.L. and Others
Black walnut on Kansas strip mine spoils Some observations 25 years after pruning - Washington 1978 - 1-14 p. - Black Walnut, Observations United States Department of Agriculture, Forest Service Research Paper NE-393 .
Black walnut on Kansas strip mine spoils Some observations 25 years after pruning - Washington 1978 - 1-14 p. - Black Walnut, Observations United States Department of Agriculture, Forest Service Research Paper NE-393 .