APA način citiranja (7. izdanje)

HUMPHREY B. (2000). 21ST CENTURY SUPERVISOR: NINE ESSENTIAL SKILLS FOR FRONTLINE LEADERS. JOSSEY-BASS PUBLICATIONS.

Čikaški stil citiranja (17. izdanje)

HUMPHREY B. 21ST CENTURY SUPERVISOR: NINE ESSENTIAL SKILLS FOR FRONTLINE LEADERS. SAN FRANCISCO: JOSSEY-BASS PUBLICATIONS, 2000.

MLA način citiranja (9. izdanje)

HUMPHREY B. 21ST CENTURY SUPERVISOR: NINE ESSENTIAL SKILLS FOR FRONTLINE LEADERS. JOSSEY-BASS PUBLICATIONS, 2000.