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040 _aDLC
_beng
_erda
_cDLC
_dSBI
049 0 2 _aSBIO
049 0 6 _aSGE
050 0 4 _aQA135
_b.R474 1981
245 1 0 _aResearch within reach :
_belementary school mathematics /
_cMark J. Driscoll [and] CEMREL, Incorporated [and] National Institute of Education.
260 _aReston, Virginia :
_bNational Council of Teachers of Mathematics,
_c(c)1981.
300 _a141 pages :
_billustrations ;
_c28 cm.
336 _atext
_btxt
_2rdacontent
337 _aunmediated
_bn
_2rdamedia
338 _avolume
_bnc
_2rdacarrier
500 _a"Originally published as separate pieces by the Research and Development Interpretation Service (RDIS) for the Research and Development Exchange (RDx)."
504 _a1 and indexes.
530 _a2
650 0 _aMathematics
_xStudy and teaching (Elementary)
650 0 _aMathematics
_xResearch.
700 1 _aCentral Midwestern Regional Educational Laboratory.
700 1 _aNational Institute of Education (U.S.)
700 1 _aDriscoll, Mark J.
907 _a.b1046914x
_b02-20-16
_c01-22-08
942 _cBK
_hQA
_m1981
_e
_i2018-07-14
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999 _c51370
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902 _a1
_bCynthia Snell
_c1
_dCynthia Snell