TY - BOOK AU - Bush,Tony AU - Bell,Les AU - Middlewood,David TI - The principles of educational leadership and management SN - 9781848602106 (pbk.) : U1 - 371.20110941 22 PY - 2011/// CY - Los Angeles PB - SAGE KW - Educational leadership KW - Great Britain KW - School management and organization N1 - Includes bibliographical references and index ER -