APA (7e ed.) Bronvermelding

Bennett, A. B., Jr, & Nelson, L. T. (1985). Mathematics: An informal approach (2nd ed.). Allyn and Bacon.

Chicago (17e ed.) Bronvermelding

Bennett, Albert B., Jr, en Leonard T. Nelson. Mathematics: An Informal Approach. 2nd ed. Boston: Allyn and Bacon, 1985.

MLA (9e ed.) Bronvermelding

Bennett, Albert B., Jr, en Leonard T. Nelson. Mathematics: An Informal Approach. 2nd ed. Allyn and Bacon, 1985.