TY  - BOOK
AU  - Kommedahl, Thor, ed.
TI  - Challenging problems in plant health
SN  - 0890540578
U1  - 632.3 21st ed.
PY  - 1983///
CY  - Minnesota
PB  - The American Phytopathological Society
KW  - Plant disease control
KW  - Plant pathology
KW  - Williams
KW  - Paul H., ed
ER  -