Cita APA (7th ed.)

Bryman, A., & Burgess, R. G. (1999). Qualitative research. SAGE.

Cita Chicago (17th ed.)

Bryman, Alan, i Robert G. Burgess. Qualitative Research. London, Thousand Oaks, Calif: SAGE, 1999.

Cita MLA (9th ed.)

Bryman, Alan, i Robert G. Burgess. Qualitative Research. SAGE, 1999.