Meriam, J.L. (James L.), author
John Wiley & Sons, 1976
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Lamb, Charles W., author
Houghton Mifflin, 1987
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Clark, Mary Jo, author
Appleton & Lange, 1999
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Folks, J. Leroy, author
John Wiley & Sons, 1981
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Lamont, Douglas, author
Blackwell Publishers, 1996
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