APA (7th ed.) Citation

Sayer, C., Gordon, K., Robards, J., & Williams, M. (1978). Divided Europe. Macdonald.

Chicago Style (17th ed.) Citation

Sayer, Clare, Keith Gordon, John Robards, and Michael Williams. Divided Europe. London: Macdonald, 1978.

MLA (9th ed.) Citation

Sayer, Clare, et al. Divided Europe. Macdonald, 1978.