TY  - BOOK
AU  - Stakman,E. C
AU  - Levine, M. N.
TI  - The determination of biologic forms of Puccinia graminis on Torticum Spp
CY  - St. Paul, Minnesota
PB  -  The University of Minnesota
KW  - Puccinia graminis tritici  Roya del trigo
ER  -