TY - BOOK AU - Mertler,Craig A. AU - Charles,C.M. TI - Introduction to educational research SN - 9780137013449 (pbk.) U1 - 370.72 PY - 2011/// CY - Boston PB - Pearson/Allyn & Bacon KW - Education KW - Research KW - Methodology N1 - Includes bibliographical references and indexes ER -