TY - BOOK AU - Groves,Robert M. TI - Survey methodology T2 - Wiley series in survey methodology SN - 9780471483489 PY - 2004/// CY - Hoboken PB - Wiley KW - Social sciences KW - Research KW - Statistical methods KW - Social surveys KW - Methodology KW - Surveys N1 - Includes bibliographical references (p.391-413) and index ER -