John, H., E. et al.(1992).Algebra for college students / Margaret L. Lial, Charles D. Miller, E. John Hornby (Ed.ke-2).New York:Harper Collins.
Gaya MLA
Hornby, E., John. et al."Algebra for college students / Margaret L. Lial, Charles D. Miller, E. John Hornby".Ed.ke-2New York:Harper Collins,1992.Textbook.