MLA
Berry, Leonard L, A Parasuraman, and Valarie A Zeithaml. Alternative Scales for Measuring Service Quality: A Comparative Assessment Based On Psychometric and Diagnostic Criteria. 1994. https://doi.org/10.17615/zt51-n236
APA
Berry, L., Parasuraman, A., & Zeithaml, V. (1994). Alternative scales for measuring service quality: A comparative assessment based on psychometric and diagnostic criteria. https://doi.org/10.17615/zt51-n236
Chicago
Berry, Leonard L., A Parasuraman, and Valarie A Zeithaml. 1994. Alternative Scales for Measuring Service Quality: A Comparative Assessment Based On Psychometric and Diagnostic Criteria. https://doi.org/10.17615/zt51-n236