APA (7th ed.) Citation

North, W. D. (1986). A Citadel under Siege: A Strategy against the Censor.

Chicago Style (17th ed.) Citation

North, William D. A Citadel Under Siege: A Strategy Against the Censor. 1986.

MLA (9th ed.) Citation

North, William D. A Citadel Under Siege: A Strategy Against the Censor. 1986.

Warning: These citations may not always be 100% accurate.