Cita APA (7th ed.)
Macadam, I. S., Grindrod, M., & Boas, A. (1969). The annual register: World events in 1968. Longmans.
Cita Chicago (17th ed.)
Macadam, Ivison S., Muriel Grindrod, i Ann Boas. The Annual Register: World Events in 1968. London, [England]: Longmans, 1969.
Cita MLA (9th ed.)
Macadam, Ivison S., et al. The Annual Register: World Events in 1968. Longmans, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.