Cita APA (7th ed.)
Rees, P. K., & Sparks, F. W. (1969). Algebra and trigonometry (2nd ed.). McGraw-Hill.
Cita Chicago (17th ed.)
Rees, Paul Klein, i Fred Winchell Sparks. Algebra and Trigonometry. 2nd ed. New York: McGraw-Hill, 1969.
Cita MLA (9th ed.)
Rees, Paul Klein, i Fred Winchell Sparks. Algebra and Trigonometry. 2nd ed. McGraw-Hill, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.