Cita APA (7th ed.)

Leech, N. L., Barrett, K. C., & Morgan, G. A. (2015). IBM SPSS for intermediate statistics: Use and interpretation (Fifth edition.). Routledge, Taylor & Francis Group.

Cita Chicago (17th ed.)

Leech, Nancy L., Karen Caplovitz Barrett, i George A. Morgan. IBM SPSS for Intermediate Statistics: Use and Interpretation. Fifth edition. New York, NY: Routledge, Taylor & Francis Group, 2015.

Cita MLA (9th ed.)

Leech, Nancy L., et al. IBM SPSS for Intermediate Statistics: Use and Interpretation. Fifth edition. Routledge, Taylor & Francis Group, 2015.