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1.
Recent research concerning the development of spacial and geometric concepts edited by Richard Lesh and Diane Mierkiewicz by
Material type: Text Text
Publication details: Ohio ERIC Clearinghouse for Science, Mathematic and Environmental Education 1978
Availability: Items available for loan: North Eastern Hill University (1)Call number: 516.0072 LES.
2.
Some theoritical issues in mathematics education : papers from a research presession edited by Richard Lesh and Walter Secada by Series: Mathematics education report
Material type: Text Text
Publication details: Ohio ERIC clearinghouse for Science, Mathematic and Environmental Education 1979
Availability: Items available for loan: North Eastern Hill University (1)Call number: 510.72 LES.