PROUSE, H. L., & TURNER, V. D. Principles of mathematics. Scott.
Lua i Stíl Chicago (17ú heag.)PROUSE, Howard L., agus V. Dean TURNER. Principles of Mathematics. Illinois: Scott.
Lua MLA (9ú heag.)PROUSE, Howard L., agus V. Dean TURNER. Principles of Mathematics. Scott.
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