Cita APA (7th ed.)

Silverman, D. (1998). Qualitative research theory, method and practice. SAGE.

Cita Chicago (17th ed.)

Silverman, David. Qualitative Research Theory, Method and Practice. London: SAGE, 1998.

Cita MLA (8th ed.)

Silverman, David. Qualitative Research Theory, Method and Practice. SAGE, 1998.