Lua APA (7ú heag.)

Nichols, E. D. (1966). Elementary algebra. Holt, Rinehart and Winston.

Lua i Stíl Chicago (17ú heag.)

Nichols, Eugene D. Elementary Algebra. Nueva York: Holt, Rinehart and Winston, 1966.

Lua MLA (9ú heag.)

Nichols, Eugene D. Elementary Algebra. Holt, Rinehart and Winston, 1966.

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