Cita APA (7th ed.)

COLE, G. A century of Co-operation. George Allen and Unwin.

Cita Chicago (17th ed.)

COLE, G.D.H. A Century of Co-operation. London: George Allen and Unwin.

Cita MLA (9th ed.)

COLE, G.D.H. A Century of Co-operation. George Allen and Unwin.