Klerk, J. D. (2007). ILLUSTRATED Maths Dictionary 4TH EDITION. Pearson.
Lua i Stíl Chicago (17ú heag.)Klerk, Judith De. ILLUSTRATED Maths Dictionary 4TH EDITION. Pearson, 2007.
Lua MLA (8ú heag.)Klerk, Judith De. ILLUSTRATED Maths Dictionary 4TH EDITION. Pearson, 2007.
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