TY - BOOK ID - 1931087 TI - Survey responses : an evaluation of their validity AU - Wentland, Ellen J. AU - Smith, Kent W. PY - 1993 SN - 0127440305 PB - San Diego : Academic Press, DB - UniCat KW - Qualitative methods in social research KW - Social surveys KW - Enquêtes sociales KW - Social surveys. KW - Enquêtes sociales UR - https://www.unicat.be/uniCat?func=search&query=sysid:1931087 AB - ER -