APA-viite (7. p.)

Northouse, P. G. (2022). Leadership: Theory and practice (Ninth Edition.). SAGE Publishing.

Chicago-viite (17. p.)

Northouse, Peter Guy. Leadership: Theory and Practice. Ninth Edition. Thousand Oaks: SAGE Publishing, 2022.

MLA-viite (8. p.)

Northouse, Peter Guy. Leadership: Theory and Practice. Ninth Edition. SAGE Publishing, 2022.