Pythium root and stem diseases of chrysanthemum in North Carolina
Lumsden, R.D., Haasis, F.A.
Pythium root and stem diseases of chrysanthemum in North Carolina - Raleigh 1964 - 1-27 p. - North Carolina Agricultural Ex .
Pythium root and stem diseases of chrysanthemum in North Carolina - Raleigh 1964 - 1-27 p. - North Carolina Agricultural Ex .