Griffin, R., Johnson, J. Polymorphic site index curves for spruce and balsam fir growing in even-aged stands in northern Maine. Orono, Maine: 1985 22 p. : tab.
Griffin, R., Johnson, J. Polymorphic site index curves for spruce and balsam fir growing in even-aged stands in northern Maine. Orono, Maine: 1985 22 p. : tab.
Griffin, R., Johnson, J. (1985) Polymorphic site index curves for spruce and balsam fir growing in even-aged stands in northern Maine, Orono, Maine: 22 p. : tab.
Griffin, R., & Johnson, J. (1985). Polymorphic site index curves for spruce and balsam fir growing in even-aged stands in northern Maine. Orono, Maine: 22 p. : tab.
Griffin R, Johnson J. Polymorphic site index curves for spruce and balsam fir growing in even-aged stands in northern Maine. Orono, Maine: 1985. p. 22 p. : tab.