TY  - BOOK
AU  - Nyvall,Robert F.
TI  - Field crop diseases handbook
SN  - 0442267223
PY  - 1989///
CY  - New York
PB  - Van Nostrand Reinhold
KW  - Field crops
KW  - Diseases and pests
KW  - Handbooks, manuals, etc
KW  - Plant diseases
KW  - Phytophatogenic microorganisms
KW  - Control
N1  - 'An AVI book'; Bibliography : p. 783-784
ER  -