APA (7th ed.) Citation

Howitt, D., & Cramer, D. (2014). Introduction to SPSS in psychology: For version 22 and earlier (6. ed.). Pearson Education.

Chicago Style (17th ed.) Citation

Howitt, Dennis, and Duncan Cramer. Introduction to SPSS in Psychology: For Version 22 and Earlier. 6. ed. Harlow ; Munich [u.a.]: Pearson Education, 2014.

MLA (9th ed.) Citation

Howitt, Dennis, and Duncan Cramer. Introduction to SPSS in Psychology: For Version 22 and Earlier. 6. ed. Pearson Education, 2014.