TY - BOOK TI - Qualitative research methods A2 - Sage Publications CY - Beverly Hills, Calif. u.a. PB - Sage Publ. PY - 1986 LA - English M3 - Monografische Reihe (DE-588)4179998-7 (DE-627)104628669 (DE-576)209995106 gnd-content SN - 0888-5397 ER -