Cita APA (7a ed.)

Smith, L., Arthur, C., Langridge, J., Illingworth, S., & O'Donnell, T. (1995). The twentieth-century world (1. publ.). Folens.

Cita Chicago Style (17a ed.)

Smith, Lucy, Caroline Arthur, Janet Langridge, Steve Illingworth, y Tony O'Donnell. The Twentieth-century World. 1. publ. Dunstable: Folens, 1995.

Cita MLA (9a ed.)

Smith, Lucy, et al. The Twentieth-century World. 1. publ. Folens, 1995.