Cleaves, C. S., & Hobbs, M. J. (1996). Business math (4th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Cleaves, Cheryl S., agus Margie J. Hobbs. Business Math. 4th ed. Upper Saddle River, N.J: Prentice Hall, 1996.
Lua MLA (9ú heag.)Cleaves, Cheryl S., agus Margie J. Hobbs. Business Math. 4th ed. Prentice Hall, 1996.
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