Helgren, David M., 1947-, Sager, Robert J., Israel, Saul
Holt, Rinehart and Winston
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English, Paul Ward, Miller, James Andrew, Cotter, John V.
Wiley
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Gross, Herbert Henry, 1905-, Everson, Roy C.
Allyn and Bacon
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Johnston, R. J. (Ronald John), 1941-, Taylor, Peter J. (Peter James), 1944-, Watts, Michael
Blackwell
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Israel, Saul, Roemer, Norma H., Durand, Loyal
Holt, Rinehart and Winston
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Sager, Robert J., Helgren, David M., 1947-, Brooks Alison S.
Holt, Rinehart and Winston
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Short, John R., 1951-
Syracuse University Press
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Sager, Robert J., Helgren, David M., 1947-, Brooks Alison S.
Holt, Rinehart and Winston
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Mill, Hugh Robert, 1861-1950
Macmillan
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Trewartha, Glenn Thomas, 1896-, Robinson, Arthur Howard, 1915-, Hammond, Edwin Hughes, 1919-, Finch, Vernor Clifford, …
McGraw-Hill
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Kendall, Henry Madison, 1901-1966, Glendinning, Robert M.
Harcourt, Brace
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Heaton, Ellis W.
Ralph Holland
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