TY  - BOOK
AU  - Reed,Clyde Franklin
AU  - Hughes,Regina O.
TI  - Economically important foreign weeds: potential problems in the United States 
T2  - Agriculture handbook (United States. Dept. of Agriculture)
U1  - 632.580973 
PY  - 1977///
CY  - [Washington]
PB  - Agricultural Research Service, Animal and Plant Health Inspection Service, U.S. Dept. of Agriculture : [for sale by Supt. of Docs., U.S. Govt. Print. Off.]
KW  - Weeds
KW  - Identification
KW  - Plant introduction
KW  - United States
N1  - Includes indexes; Bibliography: p. 711-746
ER  -