APA (7th ed.) Citation
Van der Linden, M., & et al. (2008). The Problematic Mobile Phone Use Questionnaire (PMPUQ).
Chicago Style (17th ed.) Citation
Van der Linden, M., and et al. The Problematic Mobile Phone Use Questionnaire (PMPUQ). 2008.
MLA (9th ed.) Citation
Van der Linden, M., and et al. The Problematic Mobile Phone Use Questionnaire (PMPUQ). 2008.
Warning: These citations may not always be 100% accurate.