APA (7th ed.) Citation

Ball, M. S., & Smith, G. W. (c 1992). Analyzing visual data. Qualitative research methods.

Chicago Style (17th ed.) Citation

Ball, Michael S., and Gregory White Smith. "Analyzing Visual Data." Qualitative Research Methods c 1992.

MLA (9th ed.) Citation

Ball, Michael S., and Gregory White Smith. "Analyzing Visual Data." Qualitative Research Methods, c 1992.