Calder, R., Amirsadeghi, H., & Borgese, E. M. (1983). The Future of a troubled world. Heinemann.
Cita Chicago (17th ed.)Calder, Ritchie, Hossein Amirsadeghi, i Elisabeth Mann Borgese. The Future of a Troubled World. London: Heinemann, 1983.
Cita MLA (9th ed.)Calder, Ritchie, et al. The Future of a Troubled World. Heinemann, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.