APA (7th ed.) Citation

Campbell, D. M., & Higgins, J. C. (1984). Mathematics: People, problems, results. Wadsworth International.

Chicago Style (17th ed.) Citation

Campbell, Douglas M., and John C. Higgins. Mathematics: People, Problems, Results. Belmont, Calif.: Wadsworth International, 1984.

MLA (9th ed.) Citation

Campbell, Douglas M., and John C. Higgins. Mathematics: People, Problems, Results. Wadsworth International, 1984.