APA (7th ed.) Citation

Walden, R. (1980). The Empire builders: The rise and fall of empires. Cassell.

Chicago Style (17th ed.) Citation

Walden, Ron. The Empire Builders: The Rise and Fall of Empires. London: Cassell, 1980.

MLA (9th ed.) Citation

Walden, Ron. The Empire Builders: The Rise and Fall of Empires. Cassell, 1980.