Cita APA (7a ed.)

Cronin, A. J., Wesley, G., & Wymer, N. (1966). The citadel (1st published, new imp.). Longmans.

Cita Chicago Style (17a ed.)

Cronin, A. J., Gordon Wesley, y Norman Wymer. The Citadel. 1st published, new imp. London: Longmans, 1966.

Cita MLA (9a ed.)

Cronin, A. J., et al. The Citadel. 1st published, new imp. Longmans, 1966.