00897cam a22002651 4500 10278422 BD-DhUL 20140821162011.0 720613s1957 paua 001 0 eng 57002762 (OCoLC)331193 DLC ODaU OCoLC NBrockU DLC BD-DhUL premarc QA11 .B848 510.7 BRD Brueckner, Leo J. (Leo John), 1890-1967. Developing mathematical understandings in the upper grades [by] Leo J. Brueckner, Foster E. Grossnickle [and] John Reckzeh. Philadelphia : Winston , 1957. v , 567 p. : ill. 22 cm. Mathematics Study and teaching (Secondary). Grossnickle, Foster E. (Foster Earl), 1896- Reckzeh, John. 7 cbc oclcrpl u ncip 19 y-gencatlg ddc BK 4923 4923 0 0 ddc 0 510_700000000000000_BRD 0 NFIC 8607 DUSL DUSL GEN 2014-08-21 Gift 510.7 BRD A50979 2014-08-21 2014-08-21 BK