TY - BOOK AU - Borg,Walter R. AU - Gall,Meredith D. TI - Educational research : : an introduction / SN - 0801303346 U1 - 370.78 PY - 1989/// CY - New York : PB - Longman, KW - Education KW - Research KW - United States N1 - Includes bibliographical references and index ER -