Dubisch, R. (1963). The teaching of mathematics: From intermediate algebra thorugh first year calculus. Wiley.
Chicago-referens (17:e uppl.)Dubisch, Roy. The Teaching of Mathematics: From Intermediate Algebra Thorugh First Year Calculus. New York: Wiley, 1963.
MLA-referens (9:e uppl.)Dubisch, Roy. The Teaching of Mathematics: From Intermediate Algebra Thorugh First Year Calculus. Wiley, 1963.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.