United States. General Accounting Office
United States. Congress. House. Committee on Agriculture
United States. Congress. Senate. Committee on Agriculture and Forestry
Morris, Edmund
James A. S. Watson
Qinghai Sheng di fang zhi bian zuan wei yuan hui
Richard L. Kohls
Jilin Sheng di fang zhi bian zuan wei yuan hui
Lierre Keith
Sverker Persson
Ronnie Janoff-Bulman
S. M. Henderson
Geoffrey Seddon Shepherd
Unknown Author
Michael A. Bourlakis
C. Michael Hall
United States. Bureau of the Census
Bruce L. Gardner