-
By: Ohmann, L. F. - Grigal, D. F., - Brovold, Sandra. - North Central Forest Experiment Station (Saint Paul, Minn.)Edition:Publication info: St. Paul, Minn, U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station, 1989Volume: no.110Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: