Elementary arithmetic and learning aids / by Patricia M. Spross.
Material type:
TextSeries: Circular (United States. Office of Education) ; no. 784Publication details: Washington : U.S. Dept. of Health, Education, and Welfare, Office of Education ; [for sale by the Superintendent of Documents, U.S. Govt. Print. Off., 1965.Description: vi, 134 p. : ill. ; 26 cmSubject(s): LOC classification: - L111 .A72 no. 784
"OE-29063."
L111.A72 no. 784 bound with Circular no. 785-no. 789 subsequent to publication.
Bibliography: p. 129-134.
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