Resultats de la cerca - Dubisch, Roy 1917-

The teaching of mathematics from intermediate algebra through first year calculus. per Dubisch, Roy 1917-

Basic concepts of mathematics for elementary teachers. per Dubisch, Roy 1917-

The teaching of mathematics from intermediate algebra thorugh first year calculus per Dubisch, Roy 1917-

The nature of number, an approach to basic ideas of modern mathematics. per Dubisch, Roy 1917-