TY  - BOOK
AU  - Nyvall,Robert F.
TI  - Field crop diseases
SN  - 0813820790
AV  - SB731 N98 1999
PY  - 1999///
CY  - Ames
PB  - Iowa State University Press
KW  - Field crops
KW  - Diseases and pests
KW  - Handbooks, manuals, etc
KW  - Plant diseases
KW  - Phytopathogenic microorganisms
KW  - Control
N1  - Rev. ed. of: Field crop diseases handbook. 2nd ed. c1989; Includes bibliographical references and index
ER  -