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1by Wellemeyer, J. F. (John Fletcher), 1913-Subjects: “...Occupations Classification....”
Published 1953
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2by Paterson, Donald G. (Donald Gildersleeve), 1892-1961Subjects: “...Occupations Classification....”
Published 1953
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4Published 1978Subjects: “...Occupations Classification....”
Government Document Book -
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8by Levenson, Alec Robert, 1966-Subjects: “...Occupations Classification....”
Published 2007
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Government Document Book -
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10Published 2010Subjects: “...Occupations Classification....”
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12Published 1981Subjects: “...Occupations Classification....”
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13Published 1996Subjects: “...Occupations Classification....”
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14Published 1995Subjects: “...Occupations Classification Congresses....”
Government Document Conference Proceeding Microform Book -
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18Published 1980Subjects: “...Occupations Classification....”
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20Published 1992Subjects: “...Occupations Classification....”
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