APA (7e ed.) Bronvermelding

Grossnickle, F. E. (1963). Discovering meanings in elementary school mathematics (4th edition.). Holt, Rinehart and Winston, Inc.

Chicago (17e ed.) Bronvermelding

Grossnickle, Foster E. Discovering Meanings in Elementary School Mathematics. 4th edition. New York: Holt, Rinehart and Winston, Inc, 1963.

MLA (9e ed.) Bronvermelding

Grossnickle, Foster E. Discovering Meanings in Elementary School Mathematics. 4th edition. Holt, Rinehart and Winston, Inc, 1963.