Hirec farm working force of 1957
Maitland, S.T., Fisher, D.A.
Hirec farm working force of 1957 - Washington 1959 - 67 p. - United States Department of Agriculture .
631.1:331.8
Hirec farm working force of 1957 - Washington 1959 - 67 p. - United States Department of Agriculture .
631.1:331.8