Grossnickle, F. E. (1963). Discovering meanings in elementary school mathematics (4th edition.). Holt, Rinehart and Winston, Inc.
Chicago-referens (17:e uppl.)Grossnickle, Foster E. Discovering Meanings in Elementary School Mathematics. 4th edition. New York: Holt, Rinehart and Winston, Inc, 1963.
MLA-referens (9:e uppl.)Grossnickle, Foster E. Discovering Meanings in Elementary School Mathematics. 4th edition. Holt, Rinehart and Winston, Inc, 1963.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.