Cita APA (7th ed.)

Krause, A., & Olson, M. (2000). The basics of S and S-Plus (2nd ed.). Springer-Verlag.

Cita Chicago (17th ed.)

Krause, Andreas, i Melvin Olson. The Basics of S and S-Plus. 2nd ed. New York: Springer-Verlag, 2000.

Cita MLA (9th ed.)

Krause, Andreas, i Melvin Olson. The Basics of S and S-Plus. 2nd ed. Springer-Verlag, 2000.