Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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