TY - BOOK AU - Gardiner,A. TI - Extension mathematics SN - 9780199151509 (v. 1) AV - QA11.2 .G37 2007 U1 - 372.7 GAR 22 PY - 2007/// CY - Oxford, New York PB - Oxford Universidy Press KW - Gifted children KW - Education KW - Mathematics KW - Study and teaching (Elementary) N1 - [1] Alpha -- [2] Beta -- [3] Gamma ER -