TY - BOOK AU - Cohen,Louis AU - Manion,Lawrence AU - Morrison,Keith TI - Research methods in education SN - 9780415583350 AV - LB1028 .C572 2011 PY - 2011/// CY - London, New York PB - Routledge KW - Education KW - Research KW - Great Britain N1 - Includes bibliographical references and index ER -