Jenkins, Wiley D., author
Jones and Bartlett Learning, 2011
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Porterfield, John D.
Voice American Forum Lecture, [date of publication not identified]
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Turnock, Bernard J., author
Jones & Bartlett Learning, 2012
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Editor L. Fleming Fallon, Eric J. Zgodzinski
Jones and Barlett Publ., 2005
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Carney, Jan K., author
Jones Bartlett Learning, 2016
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