TY - BOOK AU - Marczyk,Geoffrey et al TI - Essentials of research design and methodology SN - 0471470538 PY - 2005/// CY - Hoboken PB - John Wiley & Son s, Inc KW - DeMatteo, David jt auth. KW - Festinger, David jt auth. KW - Psychology KW - research - methodology N1 - includes bibliographical references and index; Open ER -