01152nam a2200337 i 450099100084648970753620020507174425.0971218s1973 us ||| | eng 0471222518b10765451-39ule_instLE01303219ExLDip.to Matematicaeng512AMS 00A35ZDM M00Drooyan, Irving535233Elementary algebra :structure and skills /Irving Drooyan, Walter Hadel, Frank Fleming3rd edNew York :c1973xv, 464 p. :ill. ;24 cm.AlgebraDidactis of mathematicsMathematical modellingHadel, Walterauthorhttp://id.loc.gov/vocabulary/relators/aut604097Fleming, Frank J..b1076545121-09-0628-06-02991000846489707536LE013 M00 DRO11 (1973)12013000093246le013-E0.00-l- 01010.i1086107528-06-02Elementary algebra1455535UNISALENTOle01301-01-97ma -engus 01