Bekken, Bonnie Bjorguine
VGM Career Books, 2001
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Rotman, Morris B.
VGM Career Books,, 2001
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Brown, Sheldon S.
VGM Career Horizons, 1994
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Gould, Jay R.
VGM Career Horizons, 1994
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Kuther, Tara L.
Wadsworth/Cengage Learning, 2013
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