TY  - BOOK
AU  - Shurtleff, Malcom C.
AU  - Averre, Charles W.
TI  - The plant disease clinic and field diagnosis of abiotic diseases
U1  - PA 632.3 S56 
CY  - St. Paul, Minn.
PB  -  APS Press
KW  - Fitopatología
ER  -