機 修 工
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参考 文献
[编辑]- ^ 1980 Census of Population: Classified Index of Industries and Occupations. U.S. Department of Commerce, Bureau of the Census. 1982: O-68 [December 18, 2017]. (
原始 内容 存 档于2021-04-10). - ^ Henderson, C.J.; Dolphin, J.; Fehl, P.; Davenport, R. Career Opportunities in the Armed Forces. Career Opportunities Series. Facts On File, Incorporated. 2010: 230 [December 18, 2017]. ISBN 978-1-4381-1062-2. (
原始 内容 存 档于2021-04-10).