Cita APA (7th ed.)

Silverman, D. (1997). Qualitative research: Theory, method, and practice. Sage Publications.

Cita Chicago (17th ed.)

Silverman, David. Qualitative Research: Theory, Method, and Practice. London ; Thousand Oaks, Calif. ; New Delhi: Sage Publications, 1997.

Cita MLA (8th ed.)

Silverman, David. Qualitative Research: Theory, Method, and Practice. Sage Publications, 1997.