APA (7th ed.) Citation

Lankford, F. G., Coburn, T. G., & Gelb, S. (1981). Consumer mathematics. Allyn and Bacon.

Chicago Style (17th ed.) Citation

Lankford, Francis Greenfield, Terrence G. Coburn, and Sylvia Gelb. Consumer Mathematics. Boston: Allyn and Bacon, 1981.

MLA (9th ed.) Citation

Lankford, Francis Greenfield, et al. Consumer Mathematics. Allyn and Bacon, 1981.