Silverman, D. (2016). Qualitative research (Fourth edition.). Sage.
Dyfyniad Arddull ChicagoSilverman, David. Qualitative Research. Fourth edition. Los Angeles: Sage, 2016.
Dyfyniad MLASilverman, David. Qualitative Research. Fourth edition. Sage, 2016.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.