(1939). The Government Blue Book. Penguin.
Cita Chicago (17th ed.)The Government Blue Book. Harmondsworth: Penguin, 1939.
Cita MLA (8th ed.)The Government Blue Book. Penguin, 1939.
Atenció: Aquestes cites poden no estar 100% correctes.
(1939). The Government Blue Book. Penguin.
Cita Chicago (17th ed.)The Government Blue Book. Harmondsworth: Penguin, 1939.
Cita MLA (8th ed.)The Government Blue Book. Penguin, 1939.