892 resultados para Trends in disappearance
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At head of title: State of Illinois, Dwight H. Green, governor; Department of Public Health, Roland R. Cross, M.D., director.
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"LPU order 30376"--Colophon.
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Description based on: 1989-1994.
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"April 1993."
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Wesley C. Mitchell, chairman.
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At head of title: United States Department of the interior. Harold L. Ickes: secretary. Office of education: J.W. Studebaker, commissioner.
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Mode of access: Internet.
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Caption title.
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"B-260487"--P. 1.
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"Serial no. 92-33."
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"B-237223"--P. 1.
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"September 1987."
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Sponsored by the Analytical Chemistry Division of the NBS Institute for Materials Research and others.
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Mode of access: Internet.
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"SSA publication no. 13-11712"--Cover p. [4].