TY  - BOOK
AU  - Hitchcock, Albert Spear.
TI  - Manual of the grasses of the United States
U1  - 584.90973 
PY  - 1950///
CY  - Washington
PB  - GovernmentPrinting Office
KW  - Botánica
KW  - E.U.A
KW  - Gramíneas
ER  -