TY - BOOK AU - Bulmer, Martin.,ed. AU - Sturgis, Patrick J.,ed. AU - Allum, Nick.,ed. TI - Secondary analysis of survey data T2 - Sage benchmarks in social research methods SN - 9781412903844 PY - 2009/// CY - London PB - Sage KW - Social sciences-Research KW - Statistical methods- Survey data KW - Research methodology ER -