00796cam a22002291 4500 20181210001445.0 71804 s1957 paua 001 0 eng d 57002762 (OCoLC)331193 DLC ODaU OCoLC NBrockU DLC BD-DhBPA QA11 .B848 510 BRD 1957 Brueckner, Leo J. 1890-1967. 40246 Developing mathematical understandings in the upper grades / [by] Leo J. Brueckner, Foster E. Grossnickle [and] John Reckzeh. Philadelphia, Winston 1957 567 p. illus. 22 cm. Maruf Mathematics Study and teaching (Secondary). 40247 Grossnickle, Foster E. 1896- 40248 Reckzeh, John. 40249 ddc BK 13731 13731 0 ddc 0 0 BPATC BPATC GEN 2018-04-10 0 510 BRD 1957 24469 2018-04-10 00:00:00 2018-04-10 BK Maruf