TY  - BOOK
AU  - Nyvall, Robert F.
TI  - Field crop diseases handbook
U1  - 633.089 N99F 
PY  - 1989///
CY  - New York
PB  - Van Nostrand Reinhold
KW  - FIELD CROPS - DISEASES AND PESTS - HANDBOOK, MANUALS,ETC
KW  - FIELD CROPS - DISEASES AND PESTS - HANDBOOK
KW  - PLANT DISEASES - HANBOOKS, MANUALS, ETC
ER  -