| 1 |
Arithmetic we use / by Elda L. Merton, Leo J. Brueckner
Text-workbook for grade 1,Text-workbook for grade 2. - Chicago : John C. Winston , c1948-
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| 2 |
Supervision : democratic leadership in the improvement of learning / by A.S. Barr, William H. Burton [and] Leo J. Brueckner
2nd ed. - New York ; London : D. Appleton-Century Company , c1947
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| 3 |
How to make arithmetic meaningful / by Leo J. Brueckner and Foster E. Grossnickle
Philadelphia : John C. Winston , c1947
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| 4 |
Meaning and practice in arithmetic / by Leo J. Brueckner, Foster E. Grossnickle and Elda L. Merton
Grade 3 - Grade 8. - Philadelphia ; Chicago [etc.] : The John C. Winston Company , c1943
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| 5 |
Arithmetic we use / by Leo J. Brueckner, Foster E. Grossnickle, Elda L. Merton
Grade 3 - Grade 9. - Chicago : John C. Winston , c1942
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