TY - BOOK ID - 127934817 TI - Basic characteristics, sample designs and questionnaires AU - Berent, J. AU - Jones, Elise F. AU - Siddiqui, M. Khalid PY - 1982 PB - Voorburg : International statistical institute, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:127934817 AB - ER -