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Washington: U.S. Government Print. Office, 1932
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Logan, Utah: Utah State University Press, 2003
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Logan: Utah State University Press, 2003 ; [S.l.]: HathiTrust Digital Library, 2010
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Tucson, Arizona: University of Arizona Press, 1985
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Tucson, Ariz: University of Arizona Press, 1985
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Tucson: University of Arizona Press, 2002
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Washington, DC, 1932 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2007
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Washington, DC, 1931 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2007
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Washington, DC, 1925 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2007
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Washington, DC, 1908 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2007
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Washington, DC, 1890 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2006
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Washington, DC, 1968 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2008
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Washington, DC, 1930 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2007
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Washington, DC, 1929 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2007
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Washington, DC, 1884 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2005
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Washington, DC, 1978 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2009
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Washington, DC, 1968 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2008
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Elsevier BV, 1977
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The Science Press, 1919
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The Science Press, 1933