Washington, A. J., Plotkin, S. H., & Edmond, C. E. (1981). Essentials of basic mathematics (3d ed.). Benjamin/Cummings Pub. Co.
Chicago-viite (17. p.)Washington, Allyn J., Samuel H. Plotkin, ja Carolyn E. Edmond. Essentials of Basic Mathematics. 3d ed. Menlo Park, Calif: Benjamin/Cummings Pub. Co, 1981.
MLA-viite (9. p.)Washington, Allyn J., et al. Essentials of Basic Mathematics. 3d ed. Benjamin/Cummings Pub. Co, 1981.
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