TY - BOOK AU - Gall, Meredith D., AU - Gall, Joyce P AU - Borg ,Walter R. TI - Educational research: an introduction SN - 0321081897 U1 - 370.72 GAL 21 PY - 2003/// CY - Boston PB - Allyn and Bacon KW - Education KW - Research KW - United States N1 - includes bibliographical references and index ER -