WASHINGTON, A. J., PLOTKIN, S. H., & EDMOND, C. E. (1981). Essentials of basic mathematics. -- 3rd ed. The Benjamin/Cummings.
Lua i Stíl Chicago (17ú heag.)WASHINGTON, Allyn J., Samuel H. PLOTKIN, agus Carolyn E. EDMOND. Essentials of Basic Mathematics. -- 3rd Ed. Menlo Park: The Benjamin/Cummings, 1981.
Lua MLA (9ú heag.)WASHINGTON, Allyn J., et al. Essentials of Basic Mathematics. -- 3rd Ed. The Benjamin/Cummings, 1981.
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