00760nam a2200241 i 4500 1252052 BD-DhUL 20140820161832.0 140819s1974 maua b 001 0 eng 73019074 0669845825 DLC DLC DLC BD-DhUL QA135.5 .G675 510 GRE Green, George F. Elementary school mathematics : activities and materials / George F. Green, Jr. Lexington, Mass. : Heath, [1974] xiii, 512 p. : ill. ; 24 cm. Includes bibliographical references and index. Mathematics Study and teaching (Elementary) 7 cbc orignew 2 ocip 19 y-gencatlg ddc BK 4416 4416 0 0 ddc 0 510_000000000000000_GRE 0 NFIC 7873 DUSL DUSL GEN 1983-04-17 Gift 510 GRE A216403 2014-08-20 2014-08-20 BK