Cita APA (7a ed.)

Purcell, E. J., & Varberg, D. E. (1984). Calculus with analytic geometry (4th ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Purcell, Edwin J., y Dale E. Varberg. Calculus with Analytic Geometry. 4th ed. Englewood Cliffs, N.J: Prentice-Hall, 1984.

Cita MLA (9a ed.)

Purcell, Edwin J., y Dale E. Varberg. Calculus with Analytic Geometry. 4th ed. Prentice-Hall, 1984.