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Brueckner, Leo J. 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.

57002762


Mathematics--Study and teaching (Secondary).

QA11 / .B848

510.7 / BRD
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