Não informado. (1972). Industrial Education. Crowell, Collier and Macmillan.
Lua i Stíl Chicago (17ú heag.)Não informado. Industrial Education. Greenwich, Conn: Crowell, Collier and Macmillan, 1972.
Lua MLA (8ú heag.)Não informado. Industrial Education. Crowell, Collier and Macmillan, 1972.
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