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by University of Chicago School Mathematic Project Staff
by Brian Moss (University of Liverpool)
by Smith-Temple, Jean; Johnson, Joyce Young
by Shanks, Hershel
by Ford, A. Lewis; Young, Hugh D.; Freedman, Roger A.
by David E. Johnson (Birmingham Southern University); Johnny R. Johnson; John L. Hilburn; et al.
by University of Chicago School Mathematic Project
by Young, Hugh D.; Freedman, Roger A.; Sandin, T. R.; et al.
by Young, Hugh D.; Freedman, Roger A.
by Reese, Ronald Lane
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