Banks, J. H. (1956). Elements of mathematics. Allyn and Bacon, Inc..
Lua i Stíl Chicago (17ú heag.)Banks, J. Houston. Elements of Mathematics. New York: Allyn and Bacon, Inc., 1956.
Lua MLA (9ú heag.)Banks, J. Houston. Elements of Mathematics. Allyn and Bacon, Inc., 1956.
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