The cause and treatment of cavities in trees /
Welch, D.S.
The cause and treatment of cavities in trees / by D.S. Welch - Ithaca, N.Y. : Cornell University - 6 p.
Sobretiro de: Proccedings of 25th National Shade Tree Conference, 1949
206053
Arboles -- enfermedades
The cause and treatment of cavities in trees / by D.S. Welch - Ithaca, N.Y. : Cornell University - 6 p.
Sobretiro de: Proccedings of 25th National Shade Tree Conference, 1949
206053
Arboles -- enfermedades