Cita APA (7th ed.)

Einspruch, E. L. (2004). Next steps with SPSS. Sage.

Cita Chicago (17th ed.)

Einspruch, Eric L. Next Steps with SPSS. Thousand Oaks, Calif: Sage, 2004.

Cita MLA (9th ed.)

Einspruch, Eric L. Next Steps with SPSS. Sage, 2004.