Cita APA (7th ed.)

Donaldson, P. (1965). Guide to the British economy. Penguin.

Cita Chicago (17th ed.)

Donaldson, Peter. Guide to the British Economy. [Harmondsworth, Middlesex]: Penguin, 1965.

Cita MLA (9th ed.)

Donaldson, Peter. Guide to the British Economy. Penguin, 1965.