TY  - BOOK
AU  - "Johnston, L. F. & Curl, E.A."
TI  - Methods for Research on the ecology of soil -borne plant  pahtogens
U1  - 631.46:581.2   L2 
PY  - 0000///U.S.A
CY  - 1972
PB  - Burgerss Publishing Co.
ER  -