TY  - BOOK
AU  - Shear,Cornelius Lott
TI  - Studies on American grasses : : a revision of the North American species of Bromus occurring North of Mexico / 
T2  - U.S. Dept. of agriculture. Division of agrostology. Bulletin ; 
U1  - 584.9097 
PY  - 1900///
CY  - Washington : 
PB  - U. S. Department of Agriculture, Division of Agrostology, 
KW  - Bromus
KW  - Gramíneas
KW  - América do Norte
ER  -