David Silverman. (2011). Qualitative Research: Issues of Theory, Method and Practice (3rd.). India.
Chicago Style aipamenaDavid Silverman. Qualitative Research: Issues of Theory, Method and Practice. 3rd. India, 2011.
MLA aipamenaDavid Silverman. Qualitative Research: Issues of Theory, Method and Practice. 3rd. India, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.