Tree diseases of eastern forests and farm woodlands
Hepting, G.H., Fowler, M.E.
Tree diseases of eastern forests and farm woodlands - Washington 1969 - 48 p. - No. 254; United States Departm .
635.977:632
Tree diseases of eastern forests and farm woodlands - Washington 1969 - 48 p. - No. 254; United States Departm .
635.977:632