APA (7th ed.) Zitazioa
Angel, A. R. (1992). Elementary algebra for college students (3rd ed.). Prentice hall.
Chicago Style (17th ed.) Zitazioa
Angel, Allen R. Elementary Algebra for College Students. 3rd ed. New Jersey: Prentice hall, 1992.
MLA (9th ed.) Zitazioa
Angel, Allen R. Elementary Algebra for College Students. 3rd ed. Prentice hall, 1992.
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