APA (7th ed.) Citation

Ball, M. S., & Smith, G. W. (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 1992.

MLA (8th ed.) Citation

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