APA (7th ed.) Citation

Sage, Bird, K., Kelle, U., & Prein, G. (1995). Computer-aided qualitative data analysis: Theory, methods and practice. Sage.

Chicago Style (17th ed.) Citation

Sage, K. Bird, U. Kelle, and G. Prein. Computer-aided Qualitative Data Analysis: Theory, Methods and Practice. London: Sage, 1995.

MLA (8th ed.) Citation

Sage, et al. Computer-aided Qualitative Data Analysis: Theory, Methods and Practice. Sage, 1995.