Occupational information and guidance series
U.S. Government Printing Office
by Walter J. Greenleaf
Federal Security Agency, Office of Education [195-] Vocational Division bulletin No.247 , Occupational information and guidance series No.16
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Federal Security Agency, Office of Education ; for sale by the Supt. of Docs., U.S. Govt.Print. Off. 1947 Vocational Division bulletin 236 , Occupational information and guidance series 15
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