Arithmetic : its structure and concepts
Mueller, Francis J.
Arithmetic : its structure and concepts - 2nd ed. - Englewood-Cliffs, N.J. : Prentice-Hall, Inc., 1964 - 377 p.
Arithmetic : its structure and concepts - 2nd ed. - Englewood-Cliffs, N.J. : Prentice-Hall, Inc., 1964 - 377 p.