TY  - BOOK
AU  - Hitchcock,A.S.
TI  - The genera of grasses of the United States: with special reference to the economic species
T2  - U. S. Dept of Agriculture.  Bulletin no. 772.  Professional paper
AV  - S21 .A7 no. 772a
PY  - 1936///]
CY  - Washington
PB  - [U.S. Govt print. off.
KW  - Grasses
KW  - United States
N1  - Contribution from Bureau of plant industry; Revised by Agnes Chase
ER  -