Cita APA (7a ed.)

Luard, E., & Heater, D. B. (1994). The United Nations: How it works and what it does (2nd ed.). Macmillan.

Cita Chicago Style (17a ed.)

Luard, Evan, y Derek Benjamin Heater. The United Nations: How It Works and What It Does. 2nd ed. Houndmills: Macmillan, 1994.

Cita MLA (9a ed.)

Luard, Evan, y Derek Benjamin Heater. The United Nations: How It Works and What It Does. 2nd ed. Macmillan, 1994.