APA citiranje
Sobel, M. A. (1991). Precalculus mathematics (4th.ed.). Prentice Hall.
Chicago Style (17th ed.) Citation
Sobel, Max A. Precalculus Mathematics. 4th.ed. Englewood Cliffs: Prentice Hall, 1991.
MLA citiranje
Sobel, Max A. Precalculus Mathematics. 4th.ed. Prentice Hall, 1991.
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