Marshall, C. R. (1995). Designing qualitative research (2nd.). SAGE Publication, Inc.
Dyfyniad Arddull ChicagoMarshall, Catherine Rossman. Designing Qualitative Research. 2nd. California: SAGE Publication, Inc, 1995.
Dyfyniad MLAMarshall, Catherine Rossman. Designing Qualitative Research. 2nd. SAGE Publication, Inc, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.