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		No cover image available A historical reconstruction of our number system by Krusen, Kim Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available Fracciones con egipcios by Becerril Díaz, Elizabeth Material type: Article; Format: print Availability: No items available.
		No cover image available Korean children's single digit addition and subtraction : numbers structured by ten by Fuson, Karen C Kwon, Youngshim Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available Scores and forfeits - an intuitive model for integer arithmetic by Liebech, Pamela Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available Sistemas de numeración by Caballero de Alcaire, Ethel Material type: Text; Format: print ; Literary form: Not fiction Publication details: México Availability: No items available.
		No cover image available Los sistemas numerales en lengua indígena : una mirada etnolingüística by García García, Lucina Material type: Article; Format: print Publication details: México Availability: No items available.

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