Hoyle, Eric. Educational leadership : ambiguity, professionals and managerialism / Eric Hoyle and Mike Wallace. - London ; Thousand Oaks, Calif. : SAGE, 2005. - 212 p. HKBU Library ISBN: 0761967427 0761967435 9780761967422 9780761967439 Subjects--Topical Terms: School management and organization. LC Class. No.: LB2805 / H867 E 2005