American agriculture :
Hurt, R. Douglas.
American agriculture : a brief history / by R. Douglas Hurt. - Ames, Ind. : Iowa State University Press, c1994. - xii, 412 p. : ill.
0813823765
Agriculture--United States--History.
American agriculture : a brief history / by R. Douglas Hurt. - Ames, Ind. : Iowa State University Press, c1994. - xii, 412 p. : ill.
0813823765
Agriculture--United States--History.