United States
United States. General Accounting Office
United States. Congress. House. Committee on the Budget.
R. D. Neathammer
United States. Congress. Senate. Committee on Agriculture and Forestry
Unknown Author
United States. Congress. House. Committee on Agriculture
Ulrich Voigt
Annette Nielsen
Aleksandr Zelʹmanovich Gamm
Therese J. McGuire
United States. Congressional Budget Office.
J. A. Dryden
United States. National Agricultural Statistics Service
United States. Department of Agriculture. Economic Research Service
James A. Zeidler
United States. Defense Supply Agency.
Georges Vernez
Adaptive Environments Center (U.S.)