Cita APA (7th ed.)

Ashkenas Ron & Manville, B. (2019). Leader's Handbook. HBSP.

Cita Chicago (17th ed.)

Ashkenas Ron i Brook Manville. Leader's Handbook. Boston, U.S: HBSP, 2019.

Cita MLA (9th ed.)

Ashkenas Ron i Brook Manville. Leader's Handbook. HBSP, 2019.