Ward, Morgan.
Modern elementary mathematics / Morgan Ward and Clarence Ethel Hardgrove. - Massachusetts : Addison wesley, 1964. - xii, 420 p. : ill. ; 24 cm. - Addison-Wesley series in science and mathematics education .
311 311
Mathematics.
Deductive logic.
Inductive logic.
510 / W215m
Modern elementary mathematics / Morgan Ward and Clarence Ethel Hardgrove. - Massachusetts : Addison wesley, 1964. - xii, 420 p. : ill. ; 24 cm. - Addison-Wesley series in science and mathematics education .
311 311
Mathematics.
Deductive logic.
Inductive logic.
510 / W215m