Collingwood, G. H. 1890-1958. Knowing your trees, [electronic resource] / by G.H. Collingwood and Warren D. Brush. Rev. and edited by Devereux Butcher.. — Washington, : American Forestry Association,, 1974.. — 374 p. : illus. 30 cm.

Bibliography: p. 369.



73083868


Trees--United States.

QK482 / .C27 1974

582/.1609/73