Παραπομπή APA

Wagner, W. E. (2011). Using IBM SPSS Statistics for social statistics and research methods/3rd ed. Sage.

Παραπομπή Chicago Style

Wagner, William E. Using IBM SPSS Statistics for Social Statistics and Research Methods/3rd Ed. New Delhi: Sage, 2011.

Παραπομπή MLA

Wagner, William E. Using IBM SPSS Statistics for Social Statistics and Research Methods/3rd Ed. Sage, 2011.