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by Fischer, David Hackett
by University of Chicago School Mathematic Project
by OPEN UNIVERSITY
by Wolfe, Charles K.
by Harvard University Press
by Richard Middleton (The Queen's University, Belfast)
by Lewis, C.S.
by Michell, George
by William D. Ehmann (Univ. of Kentucky, Lexington); Diane E. Vance (Analytical Services Organization, Oak Ridge, Tennessee)
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