Boas, R. P., & Boas, H. P. (1996). A primer of real functions (4th ed.). Mathematical Association of America.
Lua i Stíl Chicago (17ú heag.)Boas, Ralph P., agus Harold P. Boas. A Primer of Real Functions. 4th ed. [Washington, D.C.]: Mathematical Association of America, 1996.
Lua MLA (9ú heag.)Boas, Ralph P., agus Harold P. Boas. A Primer of Real Functions. 4th ed. Mathematical Association of America, 1996.
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