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1.
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Washington : U.S. G.P.O. : For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office, 1995.
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2.
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Washington, D.C. : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health : For sale by the Supt. of Docs., U.S. G.P.O., [1990?]
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3.
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Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2006.
KF27 .E39 2006a |
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4.
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Menlo Park, CA : Crisp Publications, 1993.
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5.
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Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O. [Congressional Sales Office], 2003.
KF26 .L2736 2002b |
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6.
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Washington, DC : [U.S. G.P.O.] : For sale by the Supt. of Docs., U.S. G.P.O. [Congressional Sales Office, 2002]
Y 4.ED 8/1: 107-80 |
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7.
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Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., [Congressional Sales Office], 2002.
Y 4.L 11/4: S.HRG.107-306 |
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8.
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Washington : U.S. G.P.O. : For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office, 1999.
Y 4.ED 8/1: 106-13 |
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9.
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Washington : U.S. G.P.O. : For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office, 1997.
Y 4.L 11/4: S.HRG. 105-101 |
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10.
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Washington : U.S. G.P.O. : For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office, 1992.
Y 4.G 74/7: W 89/8 |
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