Vocational education. Laws relating to vocational education: public law no. 347, 64th Congress; [extract from] public law no. 64, 65th Congress; public law no. 178, 65th Congress; public law no. 279, 65th Congress; public law no. 11, 66th Congress; public law no. 52, 66th Congress; public law no. 236, 66th Congress; public law no. 47, 67th Congress; [extract from] public law no. 172, 67th Congress.

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