APA (7th ed.) Citation

Hack & Blackburn. (2004). Did Singapore have to fall?: Churchill and the impregnable fortress. RoutledgeCurzon.

Chicago Style (17th ed.) Citation

Hack and Blackburn. Did Singapore Have to Fall?: Churchill and the Impregnable Fortress. London New York: RoutledgeCurzon, 2004.

MLA (8th ed.) Citation

Hack and Blackburn. Did Singapore Have to Fall?: Churchill and the Impregnable Fortress. RoutledgeCurzon, 2004.

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