TY  - BOOK
AU  - Patton, Michael Q.
TI  - Qualitative research & evaluation  methods
SN  - 9780761919711
AV  - MED H62 .P3218
PY  - 2002///
CY  - United Kingdom
PB  - Sage publication Ltd.
KW  - social sciences-methodology
KW  - evaluation research
ER  -