Teaching the new arithmetic
Wilson, Guy Michell 1876-
Teaching the new arithmetic - New York: McGraw-Hill, 1951. - 483 p. : il., tabla ; 23,5 cm. - McGraw-Hill series in education . - McGraw-Hill series in education .
ARITMETICA
511(07)
Teaching the new arithmetic - New York: McGraw-Hill, 1951. - 483 p. : il., tabla ; 23,5 cm. - McGraw-Hill series in education . - McGraw-Hill series in education .
ARITMETICA
511(07)
