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By Herr, Edwin L..
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By Herr, Edwin L..
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By Herr, Edwin L..
Columbus, Ohio Eric Clearinghouse on Vocational and Technical Education 1972 .
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By Herr, Edwin L..
New York Appleton-Century-Crofts 1968 .
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By Herr, Edwin L..
Falls Church, Va. American Personnel and Guidance Association 1979 .
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By Herr, Edwin L..
Boston Pearson 2004 .
768p p. 0321081390