Inclusion of the cost of farm labor in determining the parity price of agricultural commodities : hearings before the Committee on Agriculture and Forestry, United States Senate, Seventy-eighth Congress, first session on H.R. 1408, an act to amend section 301 (A) (1) of the Agricultural Adjustment Act of 1938, as amended, and the first sentence of paragraph (1) of section 2 of the Agricultural Adjustment Act of 1933 as amended, and as reenacted and amended by the Agricultural Marketing Agreement Act of 1937, approved June 3, 1937, as amended, so as to include the cost of all farm labor in determining the parity price of agricultural commodities, April 6, 8, 12, and May 4, 1943.