Brueckner, Leo J. The new knowing about numbers / Leo J. Brueckner, Foster E. Grossnickle and Elda L. Merton. - Toronto : John C. Winston, c 1959. - vi, 410 p. : ill. ; 24 cm. - Winston arithmetics ; . 343 343 Subjects--Topical Terms: Arithmetic--Study and teaching. Dewey Class. No.: 510.7 / B832n