TY  - BOOK
A2  - Keith F. Punch.
AU  - Punch, Keith Francis.
ET  - 3rd ed.
NV  - XVI, [6], 386 s. :
PY  - 2014
SN  - 9781446240922
SN  - 9781446240939
TI  - Introduction to social research : quantitative & qualitative approaches /
ER  -