United States. Federal Board for Vocational Education. (1933). The Earning Ability of Farmers Who Have Received Vocational Training; A Comparison of the Earnings of Former Vocational Students Now Farming with the Earnings of an Equivalent Group in Farming Who Did Not Receive Vocational Training. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Federal Board for Vocational Education. The Earning Ability of Farmers Who Have Received Vocational Training; A Comparison of the Earnings of Former Vocational Students Now Farming with the Earnings of an Equivalent Group in Farming Who Did Not Receive Vocational Training. [Washington]: [s.n.], 1933.
MLA (9th ed.) CitationUnited States. Federal Board for Vocational Education. The Earning Ability of Farmers Who Have Received Vocational Training; A Comparison of the Earnings of Former Vocational Students Now Farming with the Earnings of an Equivalent Group in Farming Who Did Not Receive Vocational Training. [s.n.], 1933.