International Peace Bureau (IPB). (1992). International Peace Bureau (IPB). Annual report.. Geneva: IPB.
Cita Chicago (17th ed.)International Peace Bureau (IPB). International Peace Bureau (IPB). Annual Report.. Geneva: IPB, 1992.
Cita MLA (8th ed.)International Peace Bureau (IPB). International Peace Bureau (IPB). Annual Report.. Geneva: IPB, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.