Cita APA (7th ed.)

Halliday, F. (1974). Arabia Without Sultans. Penguin Books.

Cita Chicago (17th ed.)

Halliday, Fred. Arabia Without Sultans. Harmondsworth: Penguin Books, 1974.

Cita MLA (8th ed.)

Halliday, Fred. Arabia Without Sultans. Penguin Books, 1974.