TY - BOOK AU - Marczyk,Geoffrey R. AU - DeMatteo,David AU - Festinger,David TI - Essentials of research design and methodology SN - 9780471470533 U1 - 150.72 23 PY - 2005///] CY - London, England PB - John Wiley and Sons KW - Psychology KW - research KW - methodology KW - NGU-sh N1 - Includes bibliographical references and index ER -