APA Style
Kommedahl, Thor., Williams, Paul H. (1983).
Challenging problems in plant health .
St. Paul, Minnesota:
The American Phytopathological Society.
Chicago Style
Kommedahl, Thor., Williams, Paul H.
Challenging problems in plant health.
St. Paul, Minnesota:
The American Phytopathological Society,
1983.
Text.
MLA Style
Kommedahl, Thor., Williams, Paul H.
Challenging problems in plant health.
St. Paul, Minnesota:
The American Phytopathological Society,
1983.
Text.
Turabian Style
Kommedahl, Thor., Williams, Paul H.
Challenging problems in plant health.
St. Paul, Minnesota:
The American Phytopathological Society,
1983.
Print.