TY  - SER
ED  -  United States. Department of Agriculture. Economic Research Service.
TI  -  Distribution of varieties and classes of wheat in the United States
U1  -  338.105 
PY  - 1964///-
CY  -  Washington, DC : 
PB  -  U.S Dept. of Agriculture Economic Research Servi ce, 
N1  -  Latest issue consulted: No. 369 (1964)
ER  -