TY  - GEN
AU  -  Engel, Uwe...[etal.] ; ed
TI  - Improving survey methods : lessons from recent research
T2  - European association of methodology (EAM) series
SN  - 9780415817622
PY  - 2015///
CY  - Newyork
PB  - Routledge
KW  - Research  methodology
KW  - Social surveys - Research
KW  - Web surveys
ER  -