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	1.	No cover image available The number systems and operations of arithmetic : an explanation of the fundamental principles of mathematics which underlie the understanding and use of arithmetic, designed for in-service training of elementary school teachers and pre-service training of elementary school teacher candidates / by Orval M. Klose by Klose, Orval M Series: The Commonwealth and international library. Mathematics division Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Oxford : Pergamon Press, 1966 Availability: Items available for loan: National Library of India (1)Call number: E 511.07 K 696. Place hold Request article Save to lists
	2.	No cover image available The number systems and operations of arithmetic : an explanation of the fundamental principles of mathematics which underlie the understanding and use of arithmetic, designed for in-service training of elementary school teachers and pre-service training/ by Orval M. Klose by Klose, Orval M Series: The Commonwealth and international library. Mathematics division Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Oxford : Pergamon, 1966 Availability: Items available for loan: National Library of India (1)Call number: E511.07 K696. Place hold Request article Save to lists

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