Insects and fungous diseases of apple and pear
Smith, R.I., Stevens, F.L.
Insects and fungous diseases of apple and pear - Raleigh 1910 - 1-126 p. - Insect, Fungous Disease, Apple, Pear North Carolina Agricultural Experiment Station. Bulletin No. 206 .
Insects and fungous diseases of apple and pear - Raleigh 1910 - 1-126 p. - Insect, Fungous Disease, Apple, Pear North Carolina Agricultural Experiment Station. Bulletin No. 206 .