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by Williams, Tennessee
by William D. Ehmann (Univ. of Kentucky, Lexington); Diane E. Vance (Analytical Services Organization, Oak Ridge, Tennessee)
by Enrique Anderson Imbert (Harvard University); Eugenio Florit (Barnard College, Columbia University)
by Thomas H. Wonnacott (University of Western Ontario); Ronald J. Wonnacott (University of Western Ontario)
by University of Chicago School Mathematic Project
by Stritch, Thomas
by Etnier, D. A.; Starnes, Wayne C.
by Lewis, C.S.
by Newman, John Henry
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