Voelkl, K. E., & Gerber, S. B. (1999). Using SPSS for Windows: Data analysis and graphics. Springer.
Cita Chicago Style (17a ed.)Voelkl, Kristin E., y Susan B. Gerber. Using SPSS for Windows: Data Analysis and Graphics. New York [etc.]: Springer, 1999.
Cita MLA (9a ed.)Voelkl, Kristin E., y Susan B. Gerber. Using SPSS for Windows: Data Analysis and Graphics. Springer, 1999.
Precaución: Estas citas no son 100% exactas.