APA aipamena

George Darren Mallery Paul. (2014). SPSS For Windows: Step by Step (11.). Pearson.

Chicago Style aipamena

George Darren Mallery Paul. SPSS For Windows: Step by Step. 11. New Delhi: Pearson, 2014.

MLA aipamena

George Darren Mallery Paul. SPSS For Windows: Step by Step. 11. Pearson, 2014.