Sharp, E. (1965). A parent's guide to the new mathematics (1a. ed.). Pocket Books, Inc..
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Dyfyniad Arddull Chicago
Sharp, Evelyn. A Parent's Guide to the New Mathematics. 1a. ed. New York: Pocket Books, Inc., 1965.
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Dyfyniad MLA
Sharp, Evelyn. A Parent's Guide to the New Mathematics. 1a. ed. Pocket Books, Inc., 1965.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.