TY  - BOOK
AU  - Little, Elbert L.
TI  - Check List of native and naturalized trees of the united states 
U1  - 581.973 21st ed
PY  - 1953///
CY  - The Superintendent of Documents U.S. Government
PB  - Washington
KW  - Trees
KW  - Plant
KW  - Botanical index
N1  - Agriculture Handbook No.41; The forest service tree and range plant name committee
ER  -