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| 007 | cr bn ---auaua | ||
| 008 | 900425s1971 iau|||||||||||||| ||eng|d | ||
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| 035 | ⊔ | ⊔ | ‡asdr-miu.990018838880106381 |
| 035 | ⊔ | ⊔ | ‡z(MiU)MIU01000000000000001883888-goog |
| 035 | ⊔ | ⊔ | ‡a(OCoLC)377916 |
| 035 | ⊔ | ⊔ | ‡a(SAZTEC)073704930 |
| 035 | ⊔ | ⊔ | ‡a(CaOTULAS)176796378 |
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| 040 | ⊔ | ⊔ | ‡cSAZTEC ‡dUtOrBLW |
| 100 | 1 | ⊔ | ‡aHeddens, James W., ‡d1925- ‡0http://id.loc.gov/authorities/names/n80046401 ‡1http://id.loc.gov/rwo/agents/n80046401 |
| 245 | 1 | 0 | ‡aToday's mathematics; ‡ba guide to concepts and methods in elementary school mathematics. |
| 250 | ⊔ | ⊔ | ‡a2d ed. |
| 260 | ⊔ | ⊔ | ‡aPalo Alto : ‡bScience Research Associates, ‡c[c1971] |
| 300 | ⊔ | ⊔ | ‡a495 p. : ‡billus. |
| 336 | ⊔ | ⊔ | ‡atext ‡btxt ‡2rdacontent |
| 337 | ⊔ | ⊔ | ‡aunmediated ‡bn ‡2rdamedia |
| 338 | ⊔ | ⊔ | ‡avolume ‡bnc ‡2rdacarrier |
| 504 | ⊔ | ⊔ | ‡aIncludes bibliography. |
| 538 | ⊔ | ⊔ | ‡aMode of access: Internet. |
| 650 | ⊔ | 0 | ‡aMathematics ‡xStudy and teaching (Elementary) ‡0http://id.loc.gov/authorities/subjects/sh85082163 |
| 899 | ⊔ | ⊔ | ‡a39015035510216 ‡bBuhr B 1065487 |
| CID | ⊔ | ⊔ | ‡a001883888 |
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| DAT | 1 | ⊔ | ‡a20250104125742.0 ‡b2025-01-05T11:48:20Z |
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| 974 | ⊔ | ⊔ | ‡bMIU ‡cMIU ‡d20250105 ‡sgoogle ‡umdp.39015035510216 ‡y1971 ‡ric ‡qbib ‡tUS bib date1 >= 1930 |