Online Public Access Catalogue (OPAC)
Library,Documentation and Information Science Division

“A research journal serves that narrow

borderland which separates the known from the unknown”

-P.C.Mahalanobis


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Sorting / [electronic resource] by John Satchwell ; illustrated by Katy Sleight.

By: Contributor(s): Material type: TextTextSeries: First mathsPublication details: Pleasant Hill, Calif. : Discovery Toys, 1987, c1986.Description: [28] p. : col. ill. ; 18 cmISBN:
  • 0939979004
  • 9780939979004
Subject(s): DDC classification:
  • 513/.2 19
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