Gaya APA

Davies, B., Ellison, L. (1997). School leadership for 21st century : a competency and knowledge approach / Brent Davies and Linda Ellison . London: Routledge.

Gaya MLA

Davies, Brent., Ellison, Linda.. "School leadership for 21st century : a competency and knowledge approach / Brent Davies and Linda Ellison". London: Routledge, 1997. Buku.