APA način citiranja (7. izdanje)
Kafele, B. K. (2015). Principal 50: Critical leadership questions for inspiring schoolwide excellence. ASCD.
Čikaški stil citiranja (17. izdanje)
Kafele, Baruti K. Principal 50: Critical Leadership Questions for Inspiring Schoolwide Excellence. Alexandria, Virginia: ASCD, 2015.
MLA način citiranja (9. izdanje)
Kafele, Baruti K. Principal 50: Critical Leadership Questions for Inspiring Schoolwide Excellence. ASCD, 2015.
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