Cita APA (7a ed.)

Langdridge, D., & Hagger-Johnson, G. (2013). Introduction to research methods and data analysis in psychology (Third edition.). Pearson.

Cita Chicago Style (17a ed.)

Langdridge, Darren, y Gareth Hagger-Johnson. Introduction to Research Methods and Data Analysis in Psychology. Third edition. Harlow, England: Pearson, 2013.

Cita MLA (8a ed.)

Langdridge, Darren, y Gareth Hagger-Johnson. Introduction to Research Methods and Data Analysis in Psychology. Third edition. Pearson, 2013.