Brueckner, Leo J.
Developing mathematical understandings : in the upper grades / Leo J. Brueckner, Foster E. Grossnickle and John Reckzeh. - Philadelphia : The John C. Winston company, c 1957. - 567 p. : ill. ; 22 cm.
316 316
Mathematics.
510.7 / B832d
Developing mathematical understandings : in the upper grades / Leo J. Brueckner, Foster E. Grossnickle and John Reckzeh. - Philadelphia : The John C. Winston company, c 1957. - 567 p. : ill. ; 22 cm.
316 316
Mathematics.
510.7 / B832d